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A complex of ceftriaxone with Pb(II): synthesis, characterization, and antibacterial activity study / A. O. Lykhin [et al.]> // J. Coord. Chem. - 2014. - Vol. 67, Is. 16. - З. 2783-2794, DOI 10.1080/00958972.2014.938065. - Cited References: 48. - The reported study was supported by RFBR, research project No. 14-03-31, 170 MOJI_a and Krasnoyarsk regional fund for supporting scientific and technological activities. We thank the Center for Equipment Joint Use of the Siberian Federal University. We are grateful to the HPC Research Departments of Siberian Federal University and Moscow University Supercomputing Center (SKIF MSU "Chebyshev") for the access to the high-performance computer clusters.
. - ISSN 0095-8972. - ISSN 1029-0389РУБ Chemistry, Inorganic & Nuclear Рубрики: BETA-LACTAM ANTIBIOTICS TERNARY COMPLEX METAL-COMPLEXES BASIS-SETS 3 DECADES RESISTANCE COPPER(II) CEPHALOSPORINS EVOLUTION 1ST-ROW Кл.слова (ненормированные): Ceftriaxone lead(II) complex -- DFT -- IR spectroscopy -- TGA -- Antibacterial screening Аннотация: A Pb(II) complex with ceftriaxone (H2Ceftria) antibiotic was synthesized by reaction of ceftriaxone disodium salt (hemi)heptahydrate with lead nitrate in water–ethanol medium. The complex was characterized on the basis of complexometric titration, spectrophotometric and thermogravimetric analyses, capillary electrophoresis, IR, Raman and UV–vis spectroscopies, and density functional theory calculations. Pb(II) is five-coordinate with distorted square pyramidal geometry. The coordination of Ceftria2− to Pb(II) occurs through N and O of the triazine, lactam carbonyl, carboxylate, and amine groups. The antibacterial activity study showed that Klebsiella pneumoniae is resistant to [Pb(Ceftria)]·3H2O. The antibacterial activity of [Pb(Ceftria)]·3H2O against Staphylococcus aureus is reduced compared with ceftriaxone. In contrast, the antibacterial activity of [Pb(Ceftria)]·3H2O against Escherichia coli is 28% higher than that of ceftriaxone antibiotic.
Смотреть статью, Scopus, WOS, Читать в сети ИФ Держатели документа: Siberian Fed Univ, Dept Chem, Krasnoyarsk, Russia Siberian State Aerosp Univ, Informat Sci & Telecommun Inst, Krasnoyarsk, Russia Russian Acad Sci, LV Kirensky Inst Phys, Siberian Branch, Krasnoyarsk, Russia Siberian State Technol Univ, Dept Phys, Krasnoyarsk, Russia Univ Nevada, Dept Chem, Reno, NV 89557 USA Доп.точки доступа: Lykhin, A. O.; Лыхин А. О.; Novikova, G. V.; Новикова Г. В.; Kuzubov, A. A.; Кузубов, Александр Александрович; Staloverova, N. A.; Сталоверова Н. А.; Sarmatova, N. I.; Сарматова Н. И.; Varganov, S. A.; Варганов, Сергей Александрович; Krasnov, P. O.; Краснов, Павел Олегович; RFBR [14-03-31, 170 MOJI_a] } Найти похожие
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Bis(μ3-barbiturato−O,O,O′)-(μ2-aqua)- aqua-barium(II): crystal structure, spectroscopic and thermal properties / L. A. Solovyov [et al.]> // J. Coord. Chem. - 2017. - Vol. 70, Is. 12. - P. 1984-1993, DOI 10.1080/00958972.2017.1319943. - Cited References: 21
. - ISSN 0095-8972 Перевод заглавия: Бис(μ3-барбитурат-O,O,O')-(μ2-аква)-аква-бария(II): Кристаллическая структура, спектроскопические и термические свойства Кл.слова (ненормированные): Barbituric acid -- barium -- coordination compound -- X-ray diffraction -- infrared spectroscopy -- thermal analysis Аннотация: A polymeric coordination compound, [Ba(H2O) 2(Hba)2] (1) (H2ba – barbituric acid, C4H4N2O3), was obtained. The structure of 1 was solved using powder X-ray diffraction methods. The Ba2+ ion in 1 formed a three-capped trigonal prism. The BaO9 polyhedra, connected with each other by the edges and faces, formed a chain. Several 4- and 12-membered cycles due to the bridging μ2-H2O and bridging μ3-Hba– also formed implementing a 3-D polymer structure. The structures of 1 and other thiobarbiturate complexes were compared. The replacement of a S atom by an O atom in the heterocyclic ligand Htba− (thiobarbiturate ion) of the compound Ba(H2O)2(Htba)2 resulted in changes of the coordination number Ba(II) and supramolecular structure. The intermolecular hydrogen bonds O–H⋯O and N–H⋯O formed a 3-D net where pronounced 2-D layers of Hba– ions could be found. A new topological net in 1 was observed. The IR and thermal stability were investigated.
Смотреть статью, Scopus, WOS, Читать в сети ИФ Держатели документа: Institute of Chemistry and Chemical Technology, SB RAS, FRC “Krasnoyarsk Science Center SB RAS”, Krasnoyarsk, Russian Federation Department of Chemistry, Siberian Federal University, Krasnoyarsk, Russian Federation Laboratory of Crystal Physics, Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, Russian Federation Department of Physics, Far Eastern State Transport University, Khabarovsk, Russian Federation Доп.точки доступа: Solovyov, L. A.; Golovnev, N. N.; Molokeev, M. S.; Молокеев, Максим Сергеевич; Lesnikov, M. K. } Найти похожие
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Calcium and strontium thiobarbiturates with discrete and polymeric structures / N. N. Golovnev [et al.]> // J. Coordinat. Chem. - 2013. - Vol. 66. No. 23. - P. 4119–4130, DOI 10.1080/00958972.2013.860450
. - ISSN 4119-4130 Перевод заглавия: Кальциевый и стронциевый тиобарбитураты с дискретной и полимерной структурами Кл.слова (ненормированные): Calcium -- 2-Thiobarbituric acid IR -- Crystal structure -- Thermal decomposition -- Strontium -- IR spectroscopy Аннотация: Three new alkaline earth metal complexes, [Ca2(H2O)8(μ2-HTBA-O,O′)2(HTBA-O)2] (1), [Ca(H2O)5(HTBA-O)2]·2H2O (2), and [Sr(H2O)4(μ2-HTBA-O,S)2]n (3) (H2TBA = 2-thiobarbituric acid, C4H4N2O2S), were synthesized and characterized by FT-IR spectroscopy, TG-DSC, and single-crystal and powder X-ray diffraction analysis. The single-crystal X-ray diffraction data revealed that 1 and 2 are discrete structures, whereas 3 is a polymer. In 1 and 2, Ca2+ is seven-coordinate and forms a monocapped trigonal prism. In 1, the prisms are pairwise connected with the assistance of two [μ2-HTBA-O,O′]− ligands. In 3, Sr2+ is coordinated by four monodentate HTBA− via S or O donors and four waters, with the formation of a distorted square antiprism. The antiprisms are connected by μ2-O,S bridging HTBA−. Hydrogen bonding involving coordinated water and π–π interactions plays an important role in construction of the supramolecular 3-D structures in 1–3. Infrared spectroscopic data supported the structural data. The thermal stability of 1–3 decreases in the order 1 > 2 > 3. Dehydration of 1–3 was a multi-step process, followed by exothermic oxidative degradation of the 2-thiobarbiturate moiety between 290 and 800 °C.
Смотреть статью, Scopus, WOS, Читать в сети ИФ Держатели документа: Siberian Fed Univ, Dept Chem, Krasnoyarsk, Russia LV Kirenskii Inst Phys, Lab Crystal Phys, Krasnoyarsk 660036, Russia Inst Chem & Chem Technol, Lab Catalyt Convers Small Mol, Krasnoyarsk, Russia Russian Acad Sci, Inst Semicond Phys, Lab Opt Mat & Struct, Novosibirsk 630090, Russia; Доп.точки доступа: Golovnev, N. N.; Головнёв, Николай Николаевич; Molokeev, M. S.; Молокеев, Максим Сергеевич; Vereshchagin, S. N.; Atuchin, V. V. } Найти похожие
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Chemistry of vinylidene complexes. XVIII. Synthesis and molecular structure of the novel trinuclear mu(3)-vinylidene complex CpReFePt(mu(3)-C=CHPh)(CO)(6)(PPh(3)) / A. B. Antonova [et al.]> // J. Organomet. Chem. - 2009. - Vol. 694, Is. 1. - P. 127-130, DOI 10.1016/j.jorganchem.2008.08.037. - Cited Reference Count: 17. - Гранты: This work was supported by the Council of the Russian Federation President for Support of Young Scientists and Leading Scientific Schools (Project No. NSch-4137.2006.2) and the Krasnoyarsk Regional Science Foundation (Grants 10TS145 and 17G002). - Финансирующая организация: Council of the Russian Federation President for Support of Young Scientists and Leading Scientific Schools [NSch-4137.2006.2]; Krasnoyarsk Regional Science Foundation [10TS145, 17G002]
. - ISSN 0022-328X Рубрики: CLUSTERS CRYSTAL MNFEPT Кл.слова (ненормированные): Vinylidene complexes -- Heterometallic clusters -- Rhenium -- Iron -- Platinum -- Crystal structure -- Crystal structure -- Heterometallic clusters -- Iron -- Platinum -- Rhenium -- Vinylidene complexes -- Atomic physics -- Atoms -- Bond length -- Chemical bonds -- Coordination reactions -- Crystal structure -- Iron compounds -- Nuclear magnetic resonance -- Nuclear magnetic resonance spectroscopy -- Platinum -- Quantum chemistry -- Rhenium -- Rhenium compounds -- Bond angles -- Co groups -- Double bonds -- Fe atoms -- Heterometallic -- Heterometallic clusters -- Pt atoms -- Trimetallic -- Vinylidene complexes -- X-ray diffractions -- Platinum compounds Аннотация: The interaction between Cp(CO)(2)RePt(mu-C=CHPh)(PPh(3))(2) (1) and Fe(2)(CO)(9) afforded the new heterometallic mu(3)-vinylidene cluster CpReFePt(mu(3)-C=CHPh)(CO)(6)(PPh(3)) (2). An X-ray diffraction study shows the complex 2 possesses a trimetallic Re-Fe-Pt chain core. The bond lengths are Re-Fe 2.8221(8), Fe-Pt 2.5813(8) angstrom; the Re center dot center dot center dot Pt distance is 3.3523(7) angstrom; the bond angle Re-Fe-Pt is 76.55(3)degrees. The mu(3)-C=CHPh ligand is eta(1)-bound to the Re and Pt atoms and eta(2)-coordinated to the Fe atom. The C=C bond length is 1.412(4) angstrom. The Pt atom is coordinated by the PPh(3) and CO groups. Complex 2 is characterized by the IR and (1)H, (13)C and (31)P NMR spectra. (C) 2008 Elsevier B.V. All rights reserved.
WOS, Scopus, eLibrary Держатели документа: Russian Acad Sci, Inst Chem & Chem Technol, Siberian Branch, Krasnoyarsk 660049, Russia Russian Acad Sci, Inst Phys, Siberian Branch, Krasnoyarsk 660036, Russia Siberian Fed Univ, Krasnoyarsk 660041, Russia Russian Acad Sci, AN Nesmeyanov Organoelement Cpds Inst, Moscow 119991, Russia Доп.точки доступа: Antonova, A.B.; Chudin, O.S.; Pavlenko, N.I.; Sokolenko, W.A.; Rubaylo, A.I.; Vasiliev, A. D.; Васильев, Александр Дмитриевич; Semeikin, O.V. } Найти похожие
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Coordination effects in hydrated manganese(II) 1,3-diethyl-2-thiobarbiturates and their thermal stability / N. N. Golovnev [et al.]> // Polyhedron. - 2017. - Vol. 134. - P. 120-125, DOI 10.1016/j.poly.2017.06.002. - Cited References: 25
. - ISSN 0277-5387 Перевод заглавия: Координационные эффекты в гидратах 1,3-диэтил-2-тиобарбитуратов марганца(II) и их термическая стабильность Кл.слова (ненормированные): 1,3-Diethyl-2-thiobarbituric acid -- Complexes -- X-ray diffraction -- Infrared spectroscopy -- Manganese(II) Аннотация: Three new complexes of 1,3-diethyl-thiobarbituric acid (HDetba), barbiturate-bridged 2D Mn(II) polymer [Mn(H2O)2(Detba)2] (1), trinuclear [Mn3(H2O)10(Detba)6] (2) and discrete molecular [Mn(H2O)4(Detba)2]·H2O (3) are synthesized and structurally characterized by the X-ray single crystal technique. In 1–3, the Detba− ions are coordinated to Mn(II) only through O atoms with manganese ions in the octahedral environment. In 1, the Mn(II) ion is coordinated by four μ2 bridge Detba− ions and two terminal H2O molecules. In 2, the Mn1 ion is coordinated by three terminal H2O molecules, two terminal and one μ2 bridge Detba− ion, and Mn2 is connected with two μ2-Detba− ions and four H2O molecules. In 3, the Mn(II) ion is coordinated by two terminal Detba− ions and four terminal H2O molecules. There are intermolecular hydrogen bonds O–H⋯O, O–H⋯S in the structures of 1–3 which form the 3D networks. Structure 2 is stabilized by the π–π interaction. The compounds thermal decomposition comprises dehydration steps and the organic ligand oxidation.
Смотреть статью, Scopus, WOS, Читать в сети ИФ Держатели документа: Department of Chemistry, Siberian Federal University, 79 Svobodny Ave., Krasnoyarsk, Russian Federation Laboratory of Crystal Physics, Kirensky Institute of Physics, Federal Research Center KSC SB RAS, bld. 38 Akademgorodok 50, Krasnoyarsk, Russian Federation Department of Engineering Physics and Radioelectronic, Siberian Federal University, 79 Svobodny Ave., Krasnoyarsk, Russian Federation Department of Physics, Far Eastern State Transport University, 47 Seryshev Str., Khabarovsk, Russian Federation Laboratory of Physical Chemistry, Irkutsk Favorsky Institute of Chemistry, SB RAS, 1 Favorsky, Irkutsk, Russian Federation Laboratory of Optical Materials and Structures, Institute of Semiconductor Physics, SB RAS, Novosibirsk, Russian Federation Laboratory of Semiconductor and Dielectric Materials, Novosibirsk State University, Novosibirsk, Russian Federation Доп.точки доступа: Golovnev, N. N.; Molokeev, M. S.; Молокеев, Максим Сергеевич; Sterkhova, I. V.; Lesnikov, M. K.; Atuchin, V. V. } Найти похожие
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Coordination units of Mn2+ modulation toward tunable emission in zero-dimensional bromides for white light-emitting diodes / G. J. Zhou, J. L. Ding, X. X. Jiang [et al.]> // J. Mater. Chem. C. - 2022. - Vol. 10, Is. 6. - P. 2095-2102, DOI 10.1039/d1tc05680h. - Cited References: 57. - The present work was supported by the Natural Science Foundation of China (21871167), the 1331 Project of Shanxi Province and the Postgraduate Innovation Project of Shanxi Normal University (2019XBY018), the Beijing Natural Science Foundation (No. 2214068) and funded by RFBR according to the research project no. 19-52-80003
. - ISSN 2050-7526. - ISSN 2050-7534 Перевод заглавия: Модуляция координационных блоков с Mn2+ для управляемой люминесценции в нульмерных бромидах для белых светодиодовРУБ Materials Science, Multidisciplinary + Physics, Applied Рубрики: HALIDE PEROVSKITE NANOCRYSTALS RECENT PROGRESS DOPING MN2+ Аннотация: Organic–inorganic metal halides have become a multifunctional platform for manipulating photoluminescence due to highly efficient and tunable emissions, especially for lead-free Mn2+-based halides. Herein, the zero-dimensional (0D) bromides of (C5H14N3)2MnBr4 and (CH6N3)2MnBr4 with different coordination environments were designed and synthesized by a solvent evaporation method. They exhibit green and red broadband emission peaks at 528 nm and 627 nm with high photoluminescence quantum yields of 86.83% and 61.91%, respectively, which are attributed to the d–d transition (4T1(G) → 6A1(S)) of [MnBr4]2− tetrahedral and [Mn3Br12]6− octahedral units. The cases emphasize the effect of organic ligands on the intrinsic emissions of Mn2+ ions, thereby revealing the luminescence mechanism of Mn2+ ions in 0D isolated structures through the Tanabe–Sugano (TS) energy diagram. Thanks to their bright and stable emissions, the fabricated white light-emitting diode (LED) based on (C5H14N3)2MnBr4 and (CH6N3)2MnBr4 provides an outstanding color rendering index (Ra) of 90.8 at a correlated color temperature (CCT) of 3709 K, along with the CIE chromaticity coordinates of (0.3985, 0.3979) and a luminous efficacy of 51.2 lm W−1. This work aims at clarifying the relationship between the coordination units of Mn2+ and tunable emissions, and in particular, proposes a new strategy to explore phosphors excited by blue light for white LEDs.
Смотреть статью, Scopus, WOS, Читать в сети ИФ Держатели документа: Shanxi Normal Univ, Sch Chem & Mat Sci, Key Lab Magnet Mol & Magnet Informat Mat, Minist Educ, Taiyuan 030006, Peoples R China. Chinese Acad Sci, China Tech Inst Phys & Chem, Beijing 100190, Peoples R China. Fed Res Ctr KSC SB RAS, Kirensky Inst Phys, Lab Crystal Phys, Krasnoyarsk 660036, Russia. Siberian Fed Univ, Dept Engn Phys & Radioelect, Krasnoyarsk 660041, Russia. Kemerovo State Univ, Res & Dev Dept, Kemerovo 650000, Russia. Beijng Technol & Business Univ, Dept Phys, Beijing 100048, Peoples R China. Taiyuan Univ Technol, Coll Chem & Chem Engn, Key Lab Interface Sci & Engn Adv Mat, Minist Educ, Taiyuan 030024, Shanxi, Peoples R China. Доп.точки доступа: Zhou, Guojun; Ding, Jialiang; Jiang, Xingxing; Zhang, Jian; Molokeev, M. S.; Молокеев, Максим Сергеевич; Ren, Qiqiong; Zhou, Jun; Li, Shili; Zhang, Xian-Ming } Найти похожие
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Crystal structure and magnetic properties of Mn substituted ludwigite Co3O2BO3 / Yu. V. Knyazev [et al.]> // J. Magn. Magn. Mater. - 2012. - Vol. 324, Is. 6. - P. 923-927, DOI 10.1016/j.jmmm.2011.07.044. - Cited References: 15. - The study was supported by the Russian Foundation for Basic Research (Project no. 09-02-00171-a), the Federal Agency for Science and Innovation (Rosnauka) (Project no. MK-5632.2010.2), the Physical Division of the Russian Academy of Science, the program "Strongly Correlated Electrons", Project 2.3.1.
. - ISSN 0304-8853 Перевод заглавия: Кристаллическая структура и магнитные свойства Mn-замещенного людвигита Co3O2BO3РУБ Materials Science, Multidisciplinary + Physics, Condensed Matter Рубрики: BOND VALENT SUMS COORDINATION CHEMISTRY OXIDATION -STATE O BONDS COMPLEXES MANGANESE COBALT Кл.слова (ненормированные): Transition metal oxyborate -- Distinct crystallographic position -- Spin glass magnetic ordering Аннотация: The needle shape single crystals Co3−x MnxO2BO3 with ludwigite structure have been prepared. According to the X-ray diffraction data the preferable character of distinct crystallographic positions occupation by Mn ions is established. Magnetization field and temperature dependencies are measured. Paramagnetic Curie temperature value Θ=−100 K points out the predominance of antiferromagnetic interactions. Spin-glass magnetic ordering takes the onset at TN=41 K. The crystallographic and magnetic properties of Co3O2BO3:Mn are compared with the same for the isostructural analogs Co3O2BO3 and CoO2BO3:Fe.
Смотреть статью, Scopus, WoS, Читать в сети ИФ Доп.точки доступа: Knyazev, Yu.V.; Князев, Юрий Владимирович; Ivanova, N. B.; Иванова, Наталья Борисовна; Kazak, N. V.; Казак, Наталья Валерьевна; Platunov, M. S.; Платунов, Михаил Сергеевич; Bezmaternykh, L. N.; Безматерных, Леонард Николаевич; Velikanov, D. A.; Великанов, Дмитрий Анатольевич; Vasiliev, A. D.; Васильев, Александр Дмитриевич; Ovchinnikov, S. G.; Овчинников, Сергей Геннадьевич; Yurkin, G. Yu.; Юркин, Глеб Юрьевич } Найти похожие
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Crystal structure, spectroscopic and thermal properties of the coordination compounds M(1,3-diethyl-2-thiobarbiturate) M = Rb+, Cs+, Tl+ and NH4+ / M. S. Molokeev [et al.]> // Polyhedron. - 2015. - Vol. 98. - P. 113-119, DOI 10.1016/j.poly.2015.05.048. - Cited References: 43. - The study was carried out within the public task of the Ministry of Education and Science of the Russian Federation for research engineering of the Siberian Federal University in 2015. V.V.A. is grateful to the Ministry of Education and Science of the Russian Federation for financial support of the investigation.
. - ISSN 0277-5387 Перевод заглавия: Кристаллическая структура, спектроскопические и тепловые свойства координационных соединений M(1,3-diethyl-2-thiobarbiturate) M = Rb+, Cs+, Tl+ and NH4+РУБ Chemistry, Inorganic & Nuclear + Crystallography Рубрики: 2-THIOBARBITURIC ACID THIOBARBITURIC ACID 1,3-DIETHYL-2-THIOBARBITURIC ACID HYDROGEN-BOND COMPLEXES DIFFRACTION CHEMISTRY NETWORKS LIGAND SERIES Кл.слова (ненормированные): 1,3-Diethyl-2-thiobarbituric acid -- Alkali ion thallium(I) and ammonium cations -- Coordination compounds -- Thermal analysis -- X-ray diffraction Аннотация: Four new compounds of 1,3-diethyl-2-thiobarbituric acid (C8H11N2O2S, Hdetba) with Rb+, Cs+, Tl+ and NH4+ ions were prepared by Hdetba neutralization with the metal carbonates or ammonium hydroxide in aqueous solution. The colorless crystals have been investigated using X-ray diffraction techniques, differential scanning calorimetry, thermogravimetry and infrared spectroscopy. The coordination compounds of MDetba with M = Rb, Cs and Tl crystallize in the orthorhombic space group P212121, but compound NH4Detba crystallizes in the triclinic space group P1¯. The MDetba structures were compared at the molecular and supramolecular levels. The Detba- ion in the NH4+ compound forms conformer (A) with two diethyl groups on one side of the ion ring, whereas the Detba- ion in the Rb(I), Cs(I) and Tl(I) compounds forms conformer (B) with two diethyl groups on different sides of the ring. The results of IR spectroscopy and thermal analysis are consistent with the X-ray data. © 2015 Elsevier Ltd.
Смотреть статью, Scopus, WOS, Читать в сети ИФ Держатели документа: Laboratory of Crystal Physics, Kirensky Institute of Physics, SB RAS, bld. 38 Akademgorodok 50, Krasnoyarsk, Russian Federation Department of Physics, Far Eastern State Transport University, 47 Serysheva Str., Khabarovsk, Russian Federation Department of Chemistry, Siberian Federal University, 79 Svobodny Aven., Krasnoyarsk, Russian Federation Institute of Chemistry and Chemical Technology, SB RAS, bld. 24 Akademgorodok 50, Krasnoyarsk, Russian Federation Laboratory of Optical Materials and Structures, Institute of Semiconductor Physics, 13 Lavrentiev Aven., Novosibirsk, Russian Federation Functional Electronics Laboratory, Tomsk State University, 36 Lenin Aven., Tomsk, Russian Federation Laboratory of Semiconductor and Dielectric Materials, Novosibirsk State University, 2 Pirogov Str., Novosibirsk, Russian Federation Доп.точки доступа: Molokeev, M. S.; Молокеев, Максим Сергеевич; Golovnev, N. N.; Головнёв, Николай Николаевич; Vereshchagin, S. N.; Верещагин С. Н.; Atuchin, V. V.; Атучин, Виктор Валерьевич } Найти похожие
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First coordination compounds of SeBr2 with selenium-containing ligands: X-ray structural determination / E. V. Abramova [et al.]> // Mendeleev Commun. - 2016. - Vol. 26, Is. 6. - P. 532-534, DOI 10.1016/j.mencom.2016.11.025. - Cited References: 11
. - ISSN 0959-9436 Перевод заглавия: Первые координационные соединения SeBr2 с селенсодержащими лигандами: Рентгеноструктурное решение структуры Аннотация: The molecular structure of the coordination compounds of SeBr2 with 2,6-dichloro- and 2,6-dibromo-9-selenabicyclo[3.3.1]nonane ligands was determined by X-ray powder diffraction analysis. The complexes have a less dense packing in comparison with that in an isostructural complex of SeCl2 with 2,6-dichloro-9-selenabicyclo[3.3.1]nonane.
Смотреть статью, Scopus, WOS, Читать в сети ИФ Держатели документа: A. E. Favorsky Irkutsk Institute of Chemistry, Siberian Branch of the Russian Academy of Sciences, Irkutsk, Russian Federation L. V. Kirensky Institute of Physics, Siberian Branch of the Russian Academy of Sciences, Krasnoyarsk, Russian Federation Far Eastern State Transport University, Khabarovsk, Russian Federation Доп.точки доступа: Abramova, E. V.; Sterkhova, I. V.; Molokeev, M. S.; Молокеев, Максим Сергеевич; Potapov, V. A.; Amosova, S. V. } Найти похожие
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First outer-sphere 1,3-diethyl-2-thiobarbituric compounds [M(H2O)6](1,3-diethyl-2-thiobarbiturate)2·2H2O (M = Co2+, Ni2+): Crystal structure, spectroscopic and thermal properties / N. N. Golovnev [et al.]> // Chem. Phys. Lett. - 2016. - Vol. 653. - P. 54-59, DOI 10.1016/j.cplett.2016.04.059. - Cited References: 50. - The study was carried out within the public task of the Ministry of Education and Science of the Russian Federation for research engineering of the Siberian Federal University in 2015-2016. V.V. A. is grateful to the Ministry of Education and Science of the Russian Federation for the financial support of the investigation. X-ray data were obtained with use the analytical equipment of Krasnoyarsk Center of collective use of SB RAS.
. - ISSN 0009-2614 Перевод заглавия: Первые соединения с внешнесферным 1,3-диэтил-2-тиобарбитуратом [M(H2O)6](1,3-диэтил-2-2тиобарбитурат)2·2H2O (M=Co2+, Ni2+): кристаллическая структура, спектроскопия и тепловые свойстваРУБ Chemistry, Physical + Physics, Atomic, Molecular & Chemical Рубрики: Thiobarbituric acid complexes Transition-metal-complexes; 2-thiobarbituric acid; hydrogen-bond 2-thiobarbituric acid Hydrogen-bond Chemistry Transformation Diffraction Ligand Series Copper Кл.слова (ненормированные): 1,3-Diethyl-2-thiobarbituric acid -- Nickel(II) -- Cobalt(II) -- Coordination compound -- X-ray diffraction -- Infrared spectroscopy -- Thermal analysis Аннотация: Two new d-element compounds, [Co(H2O)6](Detba)2·2H2O (1) and [Ni(H2O)6](Detba)2·2H2O (2) (HDetba - 1,3-diethyl-2-thiobarbituric acid) were synthesized and characterized by single-crystal and powder X-ray diffraction analysis, TG-DSC and FT-IR. Structural analysis revealed that (1) and (2) are discrete structures, in which M2+ ion (M = Co, Ni) is six-coordinated by water molecules and it forms an octahedron. The outer-sphere Detba- ions and H2O molecules participate in O-H?(O/S) intermolecular hydrogen bonds which form the 2D layer. Thermal decomposition includes the stage of dehydration and the following stage of oxidation of Detba- with a release of CO2, SO2, H2O, NH3 and isocyanate gases. © 2016 Elsevier B.V. All rights reserved.
Смотреть статью, Scopus, WOS, Читать в сети ИФ Держатели документа: Department of Chemistry, Siberian Federal University, 79 Svobodny Aven., Krasnoyarsk, Russian Federation Laboratory of Crystal Physics, Kirensky Institute of Physics, SB RAS, bld. 38, Akademgorodok 50, Krasnoyarsk, Russian Federation Department of Physics, Far Eastern State Transport University, 47 Seryshev Str., Khabarovsk, Russian Federation Laboratory of Optical Materials and Structures, Institute of Semiconductor Physics, 13 Lavrentiev Aven., Novosibirsk, Russian Federation Functional Electronics Laboratory, Tomsk State University, 36 Lenin Aven., Tomsk, Russian Federation Laboratory of Semiconductor and Dielectric Materials, Novosibirsk State University, 2 Pirogov Str., Novosibirsk, Russian Federation Доп.точки доступа: Golovnev, N. N.; Molokeev, M. S.; Молокеев, Максим Сергеевич; Lesnikov, M. K.; Atuchin, V. V. } Найти похожие
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Golovnev, N. N. Crystal structure of polymer hexaaqua-hexakis(2-thiobarbiturato)dieuropium(III) [Text] / N. N. Golovnev, M. S. Molokeev> // Russ. J. Coord. Chem. - 2014. - Vol. 40, Is. 9. - P. 648-652, DOI 10.1134/S1070328414090036. - Cited References: 17. - This work was supported in the framework of the state program of the Ministry of Education and Science of the Russian Federation for research works of the Siberian Federal University in 2014.
. - ISSN 1070-3284. - ISSN 1608-3318РУБ Chemistry, Inorganic & Nuclear Рубрики: COMPLEXES 2-THIOBARBITURATE Аннотация: Complex [Eu2(HTBA)6(H2O)6] n (I), where H2TBA is 2-thiobarbituric acid C4H4N2O2S, is synthesized. Its structure is determined by X-ray diffraction analysis (CIF file CCDC 987519). The crystals of complex I are monoclinic: a = 14.1033(4) Å, b = 10.0988(4) Å, c = 15.4061(5) Å, β = 110.003(1)°, V = 2061.9(1) Å3, space group P2/n, Z = 2. All three independent ligands HTBA− are coordinated to Eu3+ through oxygen atoms. Six HTBA− ions (two terminal and four bridging) and two water molecules are coordinated to one of the independent Eu3+ ions. The second Eu3+ ion is bound to four bridging HTBA− ions and four water molecules. The coordination polyhedra are square antiprisms. The bridging HTBA− ions join the antiprisms into layers. The structure is stabilized by numerous hydrogen bonds and the π-π interaction between HTBA−.
Смотреть статью, Scopus, WOS, Читать в сети ИФ Публикация на русском языке Головнёв, Николай Николаевич. Кристаллическая структура полимерного гексааква-гексакис(2-тиобарбитурато)-диевропия(III) [Текст] / Н. Н. Головнев, М. С. Молокеев // Координ. химия : Наука, 2014. - Т. 40 № 9. - С. 564-568
Держатели документа: Siberian Fed Univ, Krasnoyarsk, Russia Russian Acad Sci, Siberian Branch, Kirenskii Inst Phys, Krasnoyarsk 660036, Russia Доп.точки доступа: Molokeev, M. S.; Молокеев, Максим Сергеевич; Головнёв, Николай Николаевич; Ministry of Education and Science of the Russian Federation } Найти похожие
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Golovnev, N. N. The crystal structure of lead(II) 1,3-diethyl-2-thiobarbiturate / N. N. Golovnev, M. S. Molokeev, I. I. Golovneva> // Russ. J. Coord. Chem. - 2015. - Vol. 41, Is. 5. - P. 300-304, DOI 10.1134/S1070328415050012. - Cited References:25
. - ISSN 1070. - ISSN 1608-3318. - РУБ Chemistry, Inorganic & Nuclear Рубрики: HYDROGEN-BOND COMPLEXES ACID 2-THIOBARBITURATE DIFFRACTION SERIES Аннотация: The complex [Pb2(DETBA)4] n (I), where HDETBA is 1,3-diethyl-2-thiobarbituric acid (C8H12N2O2S), was obtained and structurally characterized by X-ray diffraction (CIF file CCDC no. 1031501). The crystals of complex I are trigonal: a = 12.9503(3), c = 32.077(1) Å, V = 4658.9(3) Å3, space group R3¯ , Z = 9. One of the crystallographically independent lead ions, Pb(1)2+, is coordinated in an octahedral fashion by six DETBA− ions through the O atoms. The other ion, Pb(2)2+, is coordinated to six DETBA− ions through three O atoms and three S atoms making up a trigonal prism. The polyhedra Pb(1)O6 and Pb(2)O6 are united through bridging DETBA− ions into infinite layers. The ligands are linked by neither intermolecular hydrogen bonds nor π-π interactions.
Смотреть статью, Scopus, WOS, Читать в сети ИФ Публикация на русском языке Головнёв, Николай Николаевич. Кристаллическая структура 1,3-диэтил-2-тиобарбитурата свинца(II) [Текст] / Н. Н. Головнёв, М. С. Молокеев, И. И. Головнева // Координ. химия : Наука, 2015. - Т. 41 № 5. - С. 266–270
Держатели документа: Siberian Fed Univ, Krasnoyarsk, Russia. Russian Acad Sci, Siberian Branch, Kirensky Inst Phys, Krasnoyarsk, Russia. Far Eastern State Transport Univ, Khabarovsk, Russia. State Agr Univ, Krasnoyarsk, Russia. Доп.точки доступа: Molokeev, M. S.; Молокеев, Максим Сергеевич; Golovneva, I. I. } Найти похожие
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Hydrates [Na2(H2O)x](2-thiobarbiturate)2 (x = 3, 4, 5): crystal structure, spectroscopic and thermal properties / N. N. Golovnev [et al.]> // J. Coord. Chem. - 2016. - Vol. 69, Is. 21. - P. 3219-3230, DOI 10.1080/00958972.2016.1228914. - Cited References:33. - This work was supported by the the Ministry of Education and Science of the Russian Federation for research engineering of the Siberian Federal University [grant number 3049].
. - ISSN 0095-8972. - ISSN 1029-0389 Перевод заглавия: Гидраты [Na2(H2O)x](2-thiobarbiturate)2 (x = 3, 4, 5): кристаллическая структура, спектроскопические и термические свойстваРУБ Chemistry, Inorganic & Nuclear Рубрики: 2-THIOBARBITURIC ACID COMPLEXES 1,3-DIETHYL-2-THIOBARBITURATE TRANSFORMATION CESIUM Na Li Кл.слова (ненормированные): 2-Thiobarbituric acid -- Sodium -- coordination compound -- X-ray diffraction -- infrared spectroscopy -- thermal analysis Аннотация: The hydrates [Na2(H2O)3(Htba)2] (1) and [Na2(H2O)4(Htba)2] (2), where H2tba is 2-thiobarbituric acid, were obtained under different thermal conditions from aqueous solutions and were structurally characterized. The molecular and supramolecular structures were compared to the known structure of [Na2(H2O)5(Htba)2] (3). In polymeric 1–3, the Htba− ions are linked to Na+ through O and S forming octahedra. The decrease of the number of coordination water molecules led to an increase of the total number of bridge ligands (μ2-H2O, Htba−) and a change of the Htba− coordination. These factors induced higher distortion of the octahedra. It was assumed that hydrates, with a different number of coordinated water molecules, are more probable when the central metal has weaker bonds with O water molecules and with other ligands. The net topologies of 1–3 were compared. Thermal decomposition and IR spectra were analyzed for 1 and 2.
Смотреть статью, WOS, Читать в сети ИФ Держатели документа: Siberian Fed Univ, Dept Chem, Krasnoyarsk, Russia. Kirensky Inst Phys, Lab Crystal Phys, Krasnoyarsk, Russia. Far Eastern State Transport Univ, Dept Phys, Khabarovsk, Russia. Irkutsk Favorsky Inst Chem, Lab Phys Chem, Irkutsk, Russia. Inst Semicond Phys, Lab Opt Mat & Struct, Novosibirsk, Russia. Tomsk State Univ, Funct Elect Lab, Tomsk, Russia. Novosibirsk State Univ, Lab Semicond & Dielect Mat, Novosibirsk, Russia. Доп.точки доступа: Golovnev, N. N.; Molokeev, M. S.; Молокеев, Максим Сергеевич; Sterkhova, Irina V.; Atuchin, V. V.; Sidorenko, Maxim Y.; Ministry of Education and Science of the Russian Federation [3049] } Найти похожие
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Influence of alkyl substituents in 1,3-diethyl-2-thiobarbituric acid on the coordination environment in M(H2O)2(1,3-diethyl-2-thiobarbiturate)2 M = Ca2+, Sr2+ / N. N. Golovnev [et al.]> // J. Coord. Chem. - 2016. - Vol. 69, Is. 6. - P. 957-965, DOI 10.1080/00958972.2016.1149168. - Cited References: 42. - The study was carried out within the public task of the Ministry of Education and Science of the Russian Federation for research engineering of the Siberian Federal University in 2015-2016. V.V.A. is grateful to the Ministry of Education and Science of the Russian Federation for the financial support of the investigation.
. - ISSN 0095-8972 Перевод заглавия: Влияние алкильных заместителей в 1,3-диэтил-2-2тиобарбитуровой кислоты на координационное окружение в M(H2O)2(1,3-диэтил-2-тиобарбутурат)2 M = Ca2+, Sr2+РУБ Chemistry, Inorganic & Nuclear Рубрики: CRYSTAL-STRUCTURE 2-THIOBARBITURIC ACID STRUCTURAL-CHARACTERIZATION THIOBARBITURIC ACID THERMAL-PROPERTIES HYDROGEN-BOND COMPLEXES DIFFRACTION NETWORKS POLYMERS Кл.слова (ненормированные): 1,3-Diethyl-2-thiobarbituric acid -- alkaline earth metals -- coordination compound -- X-ray diffraction -- thermal analysis Аннотация: Two new isostructural complexes, [Ca(H2O)2(μ2-Detba-O,O′)2]n (1) and [Sr(H2O)2(μ2-Detba-O,O′)2]n (2) (HDetba = 1,3-diethyl-2-thiobarbituric acid), were synthesized and characterized by single-crystal and powder X-ray diffraction analysis, TG-DSC, FT-IR, and emission spectroscopy. The single-crystal X-ray diffraction data revealed that 1 and 2 are polymeric where M2+ (M = Ca, Sr) is a six-coordinate octahedral binding four Detba− ions and two water molecules. The octahedra are linked through bridging Detba− ions forming a 2-D layer. Two intermolecular hydrogen bonds O–H…S in the crystal form a 3-D net. The comparison of M(Detba)2 and M(Htba)2 (H2tba = 2-thiobarbituric acid) structures showed that the coordination number of metals in M(Detba)2 does not exceed six and there are no π–π interactions, unlike compounds with Htba−; Detba− ions are only bridges in HDetba coordination compounds. Thermal decomposition of 1 and 2 includes dehydration, which mainly ends at 200 °C, and organic ligand oxidation at 300–350 °C with a release of CO2, SO2, H2O, NH3, and isocyanate. Upon excitation at 220 nm, 1 and 2 exhibit an intense emission maximum at 557 nm.
Смотреть статью, Scopus, WOS, Читать в сети ИФ Держатели документа: Department of Chemistry, Siberian Federal University, Krasnoyarsk, Russian Federation Laboratory of Crystal Physics, Kirensky Institute of Physics, Krasnoyarsk, Russian Federation Department of Physics, Far Eastern State Transport University, Khabarovsk, Russian Federation Laboratory of Optical Materials and Structures, Institute of Semiconductor Physics, Novosibirsk, Russian Federation Functional Electronics Laboratory, Tomsk State University, Tomsk, Russian Federation Laboratory of Semiconductor and Dielectric Materials, Novosibirsk State University, Novosibirsk, Russian Federation Доп.точки доступа: Golovnev, N. N.; Головнёв, Николай Николаевич; Molokeev, M. S.; Молокеев, Максим Сергеевич; Samoilo, A. S.; Atuchin, V. V. } Найти похожие
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Novel AMoO4:Eu3+ (A = Ca and Ba) optical thermometer: Investigation of effect of local ionic coordination environment on optical performance and temperature measurement sensitivity / H. Gao, M. S. Molokeev, Q. Chen [et al.]> // Ceram. Int. - 2023. - Vol. 49, Is. 16. - P. 26803-26810, DOI 10.1016/j.ceramint.2023.05.217. - Cited References: 52. - The work was supported by the program of Science and Technology International Cooperation Project of Qinghai province (No. 2022-HZ-807) and the National Natural Science Foundation of China (Grant No. 51802172), and was carried out within the framework of the Strategic Academic Leadership Program “Priority-2030′′ for the Siberian Federal University
. - ISSN 0272-8842. - ISSN 1873-3956 Перевод заглавия: Новый оптический термометр AMoO4:Eu3+ (A = Ca и Ba): исследование влияния локального ионного координационного окружения на оптические характеристики и чувствительность измерения температуры Кл.слова (ненормированные): Phosphor -- Optical thermometer -- Coordination environment -- Abnormal thermal quenching Аннотация: A range of Eu3+-doped AMoO4 (A = Ca and Ba) phosphors were successfully synthetized, and their crystal structures, optical performance, and temperature measurement sensitivities were investigated in detail. Peak doping concentration of CaMoO4:Eu3+ phosphor was 0.18, while peak doping concentration of BaMoO4:Eu3+ phosphor may be greater than 0.18. Then, temperature-dependent photoluminescence emission spectra of representative CaMoO4:0.09Eu3+ and BaMoO4:0.03Eu3+ phosphors were recorded. CaMoO4:0.09Eu3+ phosphor exhibited abnormal thermal quenching, which was attributed to defects caused by heterovalent substitution of ions and increase in the temperature, and good thermal stability. Finally, the possibility of using both phosphors as optical thermometers was discussed, which exhibited good temperature sensitivity. However, CaMoO4:0.09Eu3+ phosphor exhibited two peak absolute (Sa, 1.28 %K−1 and 1.39 %K−1) and relative sensitivities (Sr, 1.21 %K−1 and 1.20 %K−1). In addition, variation trend of Sr value with temperature was considerably peculiar. Two optimum Sa and Sr values were attributed to abnormal thermal quenching of CaMoO4:0.09Eu3+ phosphor. Peak Sa and Sr values of BaMoO4:0.03Eu3+ phosphor was 12.39 %K−1 and 0.89 %K−1, respectively. In addition, Sa of AMoO4:Eu3+ phosphor was negatively related to Eu3+ central asymmetry, while peak Sr value was more inclined to appropriate ionic central asymmetry.
Смотреть статью, WOS, Читать в сети ИФ Держатели документа: School of Mechanical Engineering, Qinghai University, Xining, 810016, China Laboratory of Crystal Physics, Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, 660036, Russia Siberian Federal University, Krasnoyarsk, 660041, Russia Department of Physics, Far Eastern State Transport University, Khabarovsk, 680021, Russia Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences (Beijing), Beijing, 100083, China Доп.точки доступа: Gao, Huabo; Molokeev, M. S.; Молокеев, Максим Сергеевич; Chen, Qi; Min, Xin; Ma, Bin } Найти похожие
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Structural and spectroscopic properties of self-activated monoclinic molybdate BaSm2(MoO4)4 / V. V. Atuchin [et al.]> // J. Alloys Compd. - 2017. - Vol. 729. - P. 843-849, DOI 10.1016/j.jallcom.2017.07.259. - Cited References: 60. - This work was supported by the National Natural Science Foundation of China (U1632146). The reported study was funded by RFBR according to the research projects 16-52-48010, 16-32-00351, 17-02-00920 and 17-52-53031. Also, the work was supported by (Act 211) the Government of the Russian Federation, contract 02.A03.21.0011, by Project № 0356-2015-0412 of SB RAS Program№II. 2P, and by the Ministry of Education and Science of the Russian Federation (4.1346.2017/PP).
. - ISSN 0925-8388 Перевод заглавия: Структурные и спектроскопические свойства самоактивируемого моноклинного молибдата BaSm2(MoO4)4 Кл.слова (ненормированные): Coordination -- Crystal structure -- Luminescence -- Raman -- SEM -- Synthesis Аннотация: The crystal structure of new monoclinic molybdate BaSm2(MoO4)4 is refined in monoclinic unit cell C2/m with cell parameters a = 5.29448 Å, b = 12.7232 Å, c = 19.3907 Å, β = 91.2812°, V = 1305.89 Å3. The crystal structure consists of the SmO8 square antiprism joined with each other by the edges forming a 2D layer perpendicular to the c-axis. MoO4 tetrahedra join SmO8 by nodes and also participate in layer formation, and Ba ions are located between these layers. The lattice dynamics is theoretically calculated on the base of the crystal structure data. The Raman spectra are recorded and analyzed in comparison with theoretical calculations. The discrepancy between the experimental and calculated Raman frequencies does not exceed 2 cm−1 for the most of Raman lines. The luminescence spectra of Sm3+ ions, which are positioned in the lowest local symmetry site C1, strongly differ from those detected for another molybdate crystal, β-RbSm(MoO4)2, with the C2 local symmetry. The 4G5/2 → 6H9/2 band is dominating in the BaSm2(MoO4)4 luminescence.
Смотреть статью, Scopus, WOS, Читать в сети ИФ Держатели документа: Laboratory of Optical Materials and Structures, Institute of Semiconductor Physics, SB RAS, Novosibirsk, Russian Federation Functional Electronics Laboratory, Tomsk State University, Tomsk, Russian Federation Laboratory of Single Crystal Growth, South Ural State University, Chelyabinsk, Russian Federation Laboratory of Coherent Optics, Kirensky Institute of Physics, Federal Research Center KSC, SB RAS, Krasnoyarsk, Russian Federation Laboratory for Nonlinear Optics and Spectroscopy, Siberian Federal University, Krasnoyarsk, Russian Federation Laboratory of Crystal Physics, Kirensky Institute of Physics, Federal Research Center KSC, SB RAS, Krasnoyarsk, Russian Federation Department of Physics, Far Eastern State Transport University, Khabarovsk, Russian Federation Siberian Federal University, Krasnoyarsk, Russian Federation Laboratory of Molecular Spectroscopy, Kirensky Institute of Physics, Federal Research Center, KSC SB RAS, Krasnoyarsk, Russian Federation Department of Photonics and Laser Technologies, Siberian Federal University, Krasnoyarsk, Russian Federation Electronic Materials Research Laboratory, Key Laboratory of the Ministry of Education & International Center for Dielectric Research, Xi'an Jiaotong University, Xi'an, Shaanxi, China Materials Science and Engineering, University of Sheffield, Sheffield, United Kingdom Доп.точки доступа: Atuchin, V. V.; Aleksandrovsky, A. S.; Александровский, Александр Сергеевич; Molokeev, M. S.; Молокеев, Максим Сергеевич; Krylov, A. S.; Крылов, Александр Сергеевич; Oreshonkov, A. S.; Орешонков, Александр Сергеевич; Zhou, D. } Найти похожие
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Structure of Barbituratobis(2,2'-Dipyridyl)copper(II) Heptahydrate / N. N. Golovnev [et al.]> // Russ. J. Coord. Chem. - 2019. - Vol. 45, Is. 8. - P. 569-572, DOI 10.1134/S1070328419080037. - Cited References: 25. - This work was supported by the Ministry of Education and Science of the Russian Federation in the framework of the state task for the Siberian Federal University for 2017-2019 (4.7666.2017/BCh).
. - ISSN 1070-3284. - ISSN 1608-3318РУБ Chemistry, Inorganic & Nuclear Рубрики: IONIC CO-CRYSTALS BARBITURIC-ACID COMPLEXES STATE Кл.слова (ненормированные): copper(II) -- barbituric acid -- 2,2 '-dipyridyl -- complex -- structure -- properties Аннотация: The structure of the complex [Cu(Bipy)2(BA)] ∙ 7H2O (I), where Bipy is 2,2'-dipyridyl, and BA2– is the barbituric acid anion (H2BA), is determined (CIF file CCDC no. 1887338). The thermal decomposition and IR spectrum of complex I are studied. The crystals are orthorhombic: a = 26.118(3), b = 27.685(3), c = 15.683(2) Å, V = 11 370(2) Å3, space group Fdd2, Z = 16. The discrete structure of the polar crystal consists of neutral [Cu(Bipy)2(BA)] particles and molecules of crystallisation water . The Cu2+ ion is bound to the N atoms of two bidentate Bipy molecules and the N atom of the BA2− ion at the vertices of the trigonal bipyramid CuN5. Compound I is the first example of the metal complex only with the N-coordinated anions of barbituric acid (BA2−, НBA−). The structure is stabilized by hydrogen bonds O−H∙∙∙O and N−H∙∙∙O to form a three-dimensional network with the π–π interaction between the Bipy molecules. The compound begins to lose water at ~50°С and is completely dehydrated above 200°С.
Смотреть статью, Scopus, WOS, Читать в сети ИФ Публикация на русском языке Структура гаптагидрата барбитурато-бис-(2,2'-дипиридил)-меди(II) [Текст] / Н. Н. Головнев [и др.] // Координ. химия. - 2019. - Т. 45 № 8. - С. 481-484
Держатели документа: Siberian Fed Univ, Krasnoyarsk, Russia. Russian Acad Sci, Kirenskii Inst Phys, Siberian Branch, Krasnoyarsk, Russia. Far East State Transport Univ, Khabarovsk, Russia. Russian Acad Sci, Favorskii Inst Chem, Siberian Branch, Irkutsk, Russia. Доп.точки доступа: Golovnev, N. N.; Molokeev, M. S.; Молокеев, Максим Сергеевич; Sterkhova, I. V.; Lesnikov, M. K.; Ministry of Education and Science of the Russian Federation [4.7666.2017/BCh] } Найти похожие
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Structure of tetrakis((1,3-diethyl-2-thiobarbiturato)(butanol-1))dicobalt(II) / N. N. Golovnev [et al.]> // Russ. J. Coord. Chem. - 2017. - Vol. 43, Is. 2. - P. 82-85, DOI 10.1134/S1070328417010031. - Cited References: 21. - This work was carried out at the Siberian Federal University in terms of the state task of the Ministry of Education and Science of the Russian Federation for 2014–2016 (project no. 3049).
. - ISSN 1070-3284 Кл.слова (ненормированные): cobalt(II) -- 1,3-diethyl-2-thiobarbituric acid -- butanol-1 -- dimeric complex -- structure -- IR spectrum Аннотация: The structure of the dimeric complex [Co2(BuOH)4(Detba)4] (I), where НDetba is 1,3-diethyl-2-thiobarbituric acid, and BuOH is butanol-1, is determined (CIF file CCDC 1475273), and its IR spectrum is studied. The crystals are monoclinic: a = 10.7185(5), b = 21.985(1), c = 12.7235(7) Å, β = 92.196(2)°, V = 2996.1(3) Å3, space group P21/c, Z = 2. The Co2+ ions in compound I are joined in pairs by bridging ligands μ2-Detba–−O,O'. In addition, each of them is linked through the O atoms to one terminal Detba–ion and two BuOH molecules to form a trigonal bipyramid СоО5. Hydrogen bonds O–H···O formed by BuOH and Detba– join the binuclear complexes into an infinite chain. The data of IR spectroscopy are consistent with the results of X-ray diffraction analysis.
Смотреть статью, Scopus, WOS, Читать в сети ИФ Публикация на русском языке Структура тетракис((1,3-диэтил-2-тиобарбитурато)-(бутанол-1))-дикобальта(II) [Текст] / Н. Н. Головнев [и др.] // Координ. химия : Наука, 2017. - Т. 43 № 2. - С. 81-84
Держатели документа: Siberian Federal University, Krasnoyarsk, Russian Federation Kirensky Institute of Physics, Siberian Branch, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk, Russian Federation Far East State Transport University, Khabarovsk, Russian Federation Nikolaev Institute of Inorganic Chemistry, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russian Federation Novosibirsk National Research State University, Novosibirsk, Russian Federation Доп.точки доступа: Golovnev, N. N.; Molokeev, M. S.; Молокеев, Максим Сергеевич; Smolentsev, A. I.; Lesnikov, M. K. } Найти похожие
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Synthesis and thermal transformation of a neodymium(III) complex [Nd(HTBA)2(C2H3O2)(H2O)2]·2H2O to non-centrosymmetric oxosulfate Nd2O2SO4 / N. N. Golovnev [et al.]> // J. Coord. Chem. - 2015. - Vol. 68, Is. 11. - P. 1865-1877, DOI 10.1080/00958972.2015.1031119. - Cited References:59. - The study was carried out within the public task of the Ministry of Education and Science of the Russian Federation for research engineering at the Siberian Federal University in 2014. V.V.A. is grateful to the Ministry of Education and Science of the Russian Federation for the financial support of this investigation. - Cover image: Artwork representing main idea of this article
. - ISSN 0095. - ISSN 1029-0389 Перевод заглавия: Синтез и термическое разложение комплекса неодима(III) [Nd(HTBA)2(C2H3O2)(H2O)2]·2H2O до нецентросимметричного оксосульфата Nd2O2SO4РУБ Chemistry, Inorganic & Nuclear Рубрики: THIOBARBITURIC ACID COMPLEXES TRANSITION-METAL-COMPLEXES Кл.слова (ненормированные): Neodymium -- 2-Thiobarbituric acid -- Crystal structure -- Thermal -- decomposition -- IR spectroscopy Аннотация: Neodymium complex [Nd(HTBA)2(C2H3O2)(H2O)2]n·2nH2O (1) (H2TBA = 2-thiobarbituric acid, C4H4N2O2S) has been synthesized in an aqueous solution at 80–90 °C. The crystal structure of 1 has been determined by the Rietveld method in space group P21/n, a = 8.5939(2), b = 22.9953(5), c = 10.1832(2) Å, β = 112.838(1)°, Z = 4, and R = 0.0181. In 1, the Nd(III) is coordinated by four μ2-HTBA– ions through O, three oxygens from two μ2-η2 : η1-bridging CH3COO– anions, and two terminal waters with a tri-capped trigonal prism structure. The prisms form an edge-contact pair through two O from two acetates. The pairs are connected by HTBA– and form a 3-D framework. The principle product of thermal decomposition of 1 at >750 °C is Nd2O2SO4 (2). The crystal structure of 2 has been obtained in space group I222, a = 4.1199(4), b = 4.2233(4), c = 13.3490(12) Å, Z = 2, and R = 0.0246. The structure is related to an orthorhombic structure type of M2O2SO4 (M = Ln) compounds. In 2, the Nd3+ is coordinated by six oxygens in a trigonal prism. Each NdO6 prism links with two SO4 tetrahedra by nodes, with four other NdO6 prisms by edges, and with four other NdO6 prisms by nodes, and the units form the 3-D frame. In the frame, the layers of SO4 tetrahedra are alternated by two NdO6 prism layers.
Смотреть статью, Scopus, WOS, Читать в сети ИФ Держатели документа: Siberian Fed Univ, Dept Chem, Krasnoyarsk, Russia SB RAS, Kirensky Inst Phys, Lab Crystal Phys, Krasnoyarsk, Russia Far Eastern State Transport Univ, Dept Phys, Khabarovsk, Russia SB RAS, Inst Chem & Chem Technol, Lab Catalyt Convers Small Mol, Krasnoyarsk, Russia SB RAS, Inst Semicond Phys, Lab Opt Mat & Struct, Novosibirsk, Russia Tomsk State Univ, Funct Elect Lab, Tomsk 634050, Russia Novosibirsk State Univ, Lab Semicond & Dielect Mat, Novosibirsk 630090, Russia Доп.точки доступа: Golovnev, N. N.; Molokeev, M. S.; Молокеев, Максим Сергеевич; Vereshchagin, S. N.; Atuchin, V. V.; Ministry of Education and Science of the Russian Federation } Найти похожие
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Temperature and Eu2+-doping induced phase selection in NaAlSiO4 polymorphs and the controlled yellow/blue emission / M. Zhao [et al.]> // Chem. Mater. - 2017. - Vol. 29, Is. 15. - P. 6552-6559, DOI 10.1021/acs.chemmater.7b02548. - Cited References: 48. - The present work was supported by the National Natural Science Foundation of China (Grants 91622125 and 51572023 and 11574003), Natural Science Foundations of Beijing (2172036), and Fundamental Research Funds for the Central Universities (FRF-TP-16-002A3). L.N. acknowledges the support from the Special and Excellent Research Fund of Anhui Normal University.
. - ISSN 0897-4756 Перевод заглавия: Фазовый переход индуцированный температурой и допированием Eu2+ в NaAlSiO4, и контролируемое излучение желтого/голубого света Кл.слова (ненормированные): Chemical modification -- Coordination reactions -- Europium -- Light emitting diodes -- Photoluminescence -- Functional properties -- High color rendering index -- Local coordination structures -- Near ultraviolet excitations -- Structural transformation -- Synthesis temperatures -- Temperature dependent -- White light emitting diodes -- Density functional theory Аннотация: The union of temperature-dependent phase transition and relating structural transformation via modification of chemical compositions is of fundamental importance for the discovery of new materials or their functional properties optimization. Herein, the synthesis temperature and Eu2+-doping content induced phase selection and variations of the local structures in nepheline, low-carnegieite and high-carnegieite types of NaAlSiO4 polymorphs were studied in detail. The luminescence of Eu2+ in low-carnegieite and nepheline phases shows blue (460 nm) and yellow (540 nm) broad-band emissions, respectively, under near-ultraviolet excitation. The photoluminescence evolution can be triggered by the different synthesis temperatures in relation to the Eu2+-doping concentration, as corroborated by density functional theory calculations on the local coordination structures and corresponding mechanical stabilities in terms of the Debye temperature. The fabricated white light-emitting diode device with high color rendering index demonstrates that the multicolor phosphors from one system provides a new gateway for the photoluminescence tuning. © 2017 American Chemical Society.
Смотреть статью, Scopus, WOS, Читать в сети ИФ Держатели документа: Beijing Municipal Key Laboratory of New Energy Materials and Technologies, School of Materials Sciences and Engineering, University of Science and Technology Beijing, Beijing, China Laboratory of Crystal Physics, Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, Russian Federation Siberian Federal University, Krasnoyarsk, Russian Federation Department of Physics, Far Eastern State Transport University, Khabarovsk, Russian Federation Anhui Key Laboratory of Optoelectronic Materials Science and Technology, Department of Physics, Anhui Normal University, Wuhu, Anhui, China Доп.точки доступа: Zhao, M.; Xia, Z.; Molokeev, M. S.; Молокеев, Максим Сергеевич; Ning, L.; Liu, Q. } Найти похожие
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