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Структура ионных сокристаллов 2-тиобарбитурат пиперидиния-2 тиобарбитуровая кислота / Н. Н. Головнёв [и др.] // Журн. структ. химии. - 2016. - Т. 57, № 6. - С. 1330-1333, DOI 10.15372/JSC20160628. - Библиогр.: 22 . - ISSN 0136-7463
Кл.слова (ненормированные):
структура -- ионные сокристаллы -- 2-тиобарбитуровая кислота -- пиперидин -- водородные связи -- ИК спектроскопия -- structure -- ionic cocrystals -- 2-Thiobarbituric acid -- piperidine -- hydrogen bonds -- IR spectroscopy
Аннотация: Определена структура ионных сокристаллов 2-тиобарбитурата пиперидиния с 2-тиобарбитуровой кислотой PipeH+(HTBA-)H2TBA (I) (Н2ТВА - 2-тиобарбитуровая кислота, Pipe - пиперидин). Независимая часть ячейки I содержит молекулу H2TBA в виде тионмонокарбонильного таутомера, ион HTBA- и ион пиперидиния PipeH+. Структура стабилизирована межмолекулярными водородными связями (ВС) O-H···O, N-H···S и N-H···O, образующими трехмерный каркас. Результаты РСА и ИК спектроскопии указывают на образование сильной ВС O-H···O. Проведен топологический анализ сети ВС в I.

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Переводная версия Structure of ionic cocrystals piperidinium 2-thiobarbiturate–2-thiobarbituric acid [Текст] / N. N. Golovnev [et al.] // J. Struct. Chem. : MAIK Nauka-Interperiodica / Springer, 2016. - Vol. 57 Is. 6.- P.1266-1269

Держатели документа:
Дальневосточный государственный университет путей сообщения
Институт физики им. Л.В. Киренского СО РАН
Иркутский институт химии им. А.Е. Фаворского СО РАН
Красноярский государственный аграрный университет
Сибирский федеральный университет

Доп.точки доступа:
Головнёв, Николай Николаевич; Golovnev N.N.; Молокеев, Максим Сергеевич; Molokeev, M. S.; Стерхова, Ирина Владимировна; Sterkhova I.V.; Головнёва, Ирина Ивановна; Golovneva I.I.
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    Головнев, Николай Николаевич.
    Строение гидратов комплексов металлов с барбитуровыми кислотами / Николай Николаевич Головнев, М. С. Молокеев, M. K. Лесников // Журн. СФУ. Химия. - 2017. - Т. 10, № 3. - С. 401-415 ; J. Sib. Fed. Univ. Chem., DOI 10.17516/1998-2836-0036. - Библиогр.: 20. - Работа выполнена в рамках государственного задания Минобрнауки РФ Сибирскому федеральному университету в 2017-2019 гг. (4.7666.2017/БЧ). . - ISSN 1998-2836. - ISSN 2313-6049
   Перевод заглавия: Structure of hydrates of metal complexes with barbituric acids
Кл.слова (ненормированные):
барбитуровые кислоты -- ионы металлов -- комплексы -- гидраты -- структура -- barbituric acids -- metal ions -- complexes -- hydrates -- structure
Аннотация: Обобщены данные о синтезе и структуре комплексов металлов с барбитуровой (H2ba), тиобарбитуровой (H2tba) и 1,3-диэтил-2-тиобарбитуровой (HDetba) кислотами, в состав которых входит различное количество координированных молекул воды. В зависимости от условий из водного раствора кристаллизуются соединения состава [M(H2O)n−kLm]0∙pH2O (Mm+ – ион металла; L− = Hba−, Htba− и Detba−; k≥0, p≥0). Образование нейтральных комплексов [M(H2O)n−kLm]0∙pH2O, содержащих разное количество координированных молекул воды (n−k), имеет место в случае лигандов L− с потенциально разной дентатностью и/или с мостиковым способом координации. Кристаллизация нескольких гидратов [M(H2O)n−kLm]0∙pH2O также ожидается, если в них молекулы воды могут быть как концевыми, так и мостиковыми лигандами, а центральные ионы, например, щелочноземельных металлов, легко образуют разные координационные полиэдры. Синтез новых гидратов может существенно расширить круг доступных соединений, в том числе и с потенциально полезными функциональными свойствами.
Data on the synthesis and structure of metal complexes with barbituric (H2ba), thiobarbituric (H2tba) and 1,3-diethyl-2-thiobarbituric (HDetba) acids, which include a different number of coordinated water molecules, are summarized. Depending on the conditions, compounds of the composition [M(H2O)n−kLm]0∙pH2O (Mm+ – metal ion; L− = Hba−, Htba− и Detba−; k≥0, p≥0) crystallize from the aqueous solution. The formation of neutral complexes of [M(H2O)n−kLm]0∙pH2O containing different amounts of coordinated water molecules (n-k) occurs in the case of L− ligands with potentially different dentateness and/or bridging coordination. Crystallization of several hydrates [M(H2O)n−kLm]0∙pH2O is also expected if water molecules can be both terminal and bridged ligands in them, and central ions, for example, of alkaline earth metals, easily form different coordination polyhedra. Synthesis of new hydrates can significantly expand the range of available compounds, including potentially useful functional properties.

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Держатели документа:
Сибирский федеральный университет
Институт физики им. Л.В. Киренского, ФИЦ КНЦ СО РАН Россия

Доп.точки доступа:
Молокеев, Максим Сергеевич; Molokeev, M. S.; Лесников, Максим Кириллович; Lesnikov M. K.; Golovnev N. N.

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Molokeev, M. S.
Кристаллическая структура катена-бис(2-тиобарбитурато-O,S)диаквакадмия / Н. Н. Головнёв, М. С. Молокеев // Журн. неорг. химии. - 2013. - Т. 58, № 10. - С. 1332-1335DOI 10.7868/S0044457X13100097
Аннотация: Определена кристаллическая структура катена-бис(2-тиобарбитурато-O,S)диаквакадмия – (C8H10CdN4O6S2)n (I), [Cd(H2O)2(HTBA)2]n (C4H4N2O2S – 2-тиобарбитуровая кислота, Н2). Кристаллы I триклинные: a = 6.9433(3), b = 7.2257(3), c = 7.4047(3) A, = 88.559(2)°, = 75.346(2)°, = 111.687(1)°, V = 331.05(3) A3, пр. гр. P Z = 1. Ион Cd2+ координирован двумя атомами О молекул воды, двумя атомами О и двумя атомами S четырех ионов HTBA- по вершинам октаэдра. Октаэдры связаны мостиковыми ионами -O,S в бесконечные цепочки. Межмолекулярные водородные связи формируют бесконечные цепочки. Структура также стабилизирована -взаимодействием ионов НТВА-.

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Переводная версия Golovnev, N. N. Crystal structure of catena-Bis(2-thiobarbiturato-O,S)diaquacadmium / N. N. Golovnev // Russian Journal of Inorganic Chemistry : Springer US, 2013. - Vol. 58, Is. 10. - P.1193-1196

Держатели документа:
Институт физики им. Л.В. Киренского СО РАН

Доп.точки доступа:
Молокеев, Максим Сергеевич
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Головнёв, Николай Николаевич.
Кристаллическая структура 2-тиобарбитуратов цезия и рубидия / Н. Н. Головнев, М. С. Молокеев // Журн. неорг. химии. - 2014. - Т. 59, № 9. - С. 1174–1177, DOI 10.7868/S0044457X14090062. - Библиогр.: 13 назв. . - ISSN 0044-457X
Аннотация: Определены кристаллические структуры 2-тиобарбитурата цезия C4H3CsN2O2S (1) и 2-тиобарбитурата рубидия C4H3N2O2RbS (2) (C4H4N2O2S – 2-тиобарбитуровая кислота, Н2ТВА). Изоструктурные кристаллы моноклинные, 1: a = 7.9609(3), b = 11.8474(3), с = 7.7317(2) Å, β = 101.285(3)°, V = 715.13(4) Å3, пр. гр. C2/m, Z = 4; 2: a = 7.6369(2), b = 11.7690(3), с = 7.5568(2) Å, β = 100.212(1)°, V = 668.44(3) Å3, пр. гр. C2/m, Z = 4. В комплексах 1, 2 каждый ион металла связан с 4 атомами O и 2 атомами S по вершинам шестивершинного полиэдра. Водородные связи N–H···O объединяют ионы НТВА– в цепочки. Структура также стабилизирована π–π взаимодействием ионов НТВА– типа “голова к хвосту”.

Переводная версия Golovnev N. N. Crystal structures of cesium and rubidium 2-thiobarbiturates [Текст] / N. N. Golovnev, M. S. Molokeev // Russ. J. Inorg. Chem. : MAIK Nauka-Interperiodica / Springer, 2014. - Vol. 59 Is. 9.- P.943-946

Держатели документа:
Институт физики им. Л.В. Киренского СО РАН

Доп.точки доступа:
Молокеев, Максим Сергеевич; Molokeev, M. S.; Golovnev N. N.
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Yellow-orange emission in Sb3+-doped hexakis(thiocarbamidium) hexabromoindium(III) tribromide / N. N. Golovnev, M. A. Gerasimova, I. M. Belash [et al.] // Inorg. Chem. - 2024. - Vol. 63, Is. 20. - P. 9175-9183, DOI 10.1021/acs.inorgchem.4c00555. - Cited References: 53. - This work was supported by the Russian Science Foundation, project No. 24-43-00006 . - ISSN 0020-1669. - ISSN 1520-510X
Аннотация: A luminescent zero-dimensional organic–inorganic hybrid indium halide (TUH)6[In1–xSbxBr6]Br3 (TU = thiourea, 0 ≤ x ≤ 0.0998) was synthesized via the solvothermal method. In structures, resolved by single-crystal X-ray diffraction, isolated distorted [InBr6]3– and [SbBr6]3– octahedra are linked to organic TUH+ cations by intermolecular N–H···Br and N–H···S hydrogen bonds. The crystals were characterized by elemental analysis, TG-DSC, powder X-ray diffraction, FTIR analysis, and steady-state absorption and photoluminescence spectroscopy. (TUH)6[In1–xSbxBr6]Br3 exhibits a broadband yellow-orange emission centered at 595–602 nm with a half-width of 141–149 nm (0.48–0.52 eV) and a large Stokes shift of 232–238 nm (1.33–1.35 eV). This emission can be attributed to the self-trapped exciton emission of triplet states of the octahedral anion [SbBr6]3– or [InBr6]3–. Two possible emission mechanisms were discussed. Doping with Sb3+ leads to a significant increase in photoluminescence quantum yield from 25.7 at x = 0 to 48.4% at x = 0.0065, when excited at 365 nm, indicating the potential use of (TUH)6[In1–xSbxBr6]Br3 compounds in the field of photonics.

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Держатели документа:
Siberian Federal University, Krasnoyarsk 660041, Russia
Laboratory of Crystal Physics, Kirensky Institute of Physics, Krasnoyarsk 660036, Russia
Department of Physics, Far Eastern State Transport University, Khabarovsk 680021, Russia

Доп.точки доступа:
Golovnev, N. N.; Gerasimova, M. A.; Belash, I. M.; Zolotov, A. O.; Molokeev, M. S.; Молокеев, Максим Сергеевич
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    Two salts and the salt cocrystal of ciprofloxacin with thiobarbituric and barbituric acids: The structure and properties / N. N. Golovnev [et al.] // J. Phys. Org. Chem. - 2018. - Vol. 31, Is. 3. - Ст. e3773, DOI 10.1002/poc.3773. - Cited References: 58. - The study was performed within the public task of the Ministry of Education and Science of the Russian Federation to the Siberian Federal University (4.7666.2017/BP) in 2017 to 2019. The reported study was funded by RFBR according to research projects 16-52-48010 and 17-52-53031. The X-ray data from single crystals were obtained with the use of the analytical equipment from the SB RAS Krasnoyarsk Center of collective use. . - ISSN 0894-3230
   Перевод заглавия: Две соли и соляной кристалл ципрофлоксацина с тиобарбитуровой и барбитуровой кислотами: структура и свойства
Кл.слова (ненормированные):
Barbituric and thiobarbituric acids -- Ciprofloxacin -- Infrared spectroscopy -- Salt cocrystal -- Thermal stability -- X-ray diffraction
Аннотация: Ciprofloxacin (CfH, C17H18FN3O3) crystallizes with 2-thiobarbituric (H2tba) and barbituric acid (H2ba) in the aqueous solution to yield salt CfH2(Htba)·3H2O (1), salt cocrystal CfH2(Hba)(H2ba)·3H2O (2), and salt CfH2(Hba)·H2O (3). The compounds are structurally characterized by the X-ray single-crystal diffraction. The numerous intermolecular hydrogen bonds N–H⋯O and O–H⋯O formed by water molecules, Htba−/Hba− and CfH2+ ions, and H2ba molecules stabilize the crystal structures of 1 to 3. Hydrogen bonds form a 2D plane network in the salts of 1 and 3 and a 3D network in the salt cocrystal of 2. There are different π-π interactions in 1 to 3. The compounds have been characterized by powder X-ray diffraction, thermogravimetry/differential scanning calorimetry, and Fourier transform infrared spectroscopy. The compounds dehydration ends at 130°C to 150°C, and their oxidative decomposition is observed in the range of 250°C to 275°C.

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Держатели документа:
Siberian Federal University Krasnoyarsk Russia
Laboratory of Crystal Physics Kirensky Institute of Physics, Federal Research Center KSC SB RAS Krasnoyarsk Russia
Department of Physics Far Eastern State Transport University Khabarovsk Russia
Laboratory of Optical Materials and Structures Institute of Semiconductor Physics SB RAS Novosibirsk Russia
Laboratory of Semiconductor and Dielectric Materials Novosibirsk State University Novosibirsk Russia

Доп.точки доступа:
Golovnev, N. N.; Molokeev, M. S.; Молокеев, Максим Сергеевич; Lesnikov, M. K.; Atuchin, V. V.
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    Two novel mixed-ligand Ni(II) and Co(II) complexes with 1,10-phenanthroline: Synthesis, structural characterization, and thermal stability / N. N. Golovnev [et al.] // Chem. Phys. Lett. - 2018. - Vol. 708. - P. 11-16, DOI 10.1016/j.cplett.2018.07.058. - Cited References: 29. - The study was carried out within the public task of the Ministry of Education and Science of the Russian Federation to the Siberian Federal University (4.7666.2017/BP) in 2017-2019. X-ray data from single crystals were obtained with use the analytical equipment of Baikal Center of collective use of SB RAS and with use the analytical equipment of Krasnoyarsk Center of collective use of SB RAS. . - ISSN 0009-2614
   Перевод заглавия: Два новых комплекса смешанных лигандов Ni (II) и Co (II) с 1,10-фенантролином: синтез, структурная характеризация и термическая стабильность
Кл.слова (ненормированные):
Barbituric acid -- 1,10-Phenanthroline complexes -- X-ray diffraction -- Thermal decomposition -- Infrared spectroscopy
Аннотация: Two nickel(II) and cobalt(II) complexes with phenanthroline, [Ni(Phen)(H2O)3Br]Br (1) and [Co(Phen)2(H2O)2](Hba)2·2H2O (2), Phen = 1,10-phenanthroline and Hba− = barbiturate anion, were synthesized and characterized by powder XRD, TGA and FT-IR. Their structures were determined by single crystal X-ray diffraction techniques. The Ni2+ ion is coordinated by two N atoms of Phen molecule, Br− ion and three H2O molecules forming an octahedron. Uncoordinated and coordinated Br− ions are connected with water molecules by OH⋯Br intermolecular hydrogen bonds with the formation of a 2D plane network which is extended into a 3D network by π−π stacking interactions. The [Co(Phen)2(H2O)2]2+ cation contains a six-coordinated cobalt atom chelated by two Phen ligands and two aqua ligands in the cis arrangement. NH⋯O, OH⋯O and CH⋯O intermolecular hydrogen bonds form a 3D net. NH⋯O hydrogen bonds form the infinite chains of Hba–. In addition, coordinated Phen molecules and lattice water molecules are linked via CH⋯OW hydrogen bonds to form infinite zigzag chains. These different chains are connected by OWH⋯O hydrogen bonds. π−π interaction plays an important role in the stabilization of structures 1–2. FT-IR, TGA, the diffuse reflectance, and UV–Vis spectra were also used to characterize these compounds.

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Держатели документа:
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 Physics, Far Eastern State Transport University, 47 Seryshev Str., Khabarovsk, Russian Federation
Favorsky Institute of Chemistry, Siberian Branch, Russian Academy of Sciences, 1 Favorsky, Irkutsk, Russian Federation

Доп.точки доступа:
Golovnev, N. N.; Molokeev, M. S.; Молокеев, Максим Сергеевич; Sterkhova, I. V.; Lesnikov, M. K.
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    Two new Cu(II) and Ni(II) 1,10-phenanthroline complexes with anions of barbituric acids in the outer sphere: Synthesis, structure, spectroscopic, magnetic and thermal properties / N. N. Golovnev, M. S. Molokeev, I. V. Sterkhova [et al.] // J. Mol. Struct. - 2020. - Vol. 1219. - Ст. 128526, DOI 10.1016/j.molstruc.2020.128526. - Cited References: 40. - The study was funded by RFBR according to the research project № 19-52-80003 . X-ray data from single crystals were obtained with use the analytical equipment of Baikal Center of collective use of SB RAS and powder pattern were obtained with use the analytical equipment of Krasnoyarsk Center of collective use of SB RAS . - ISSN 0022-2860
   Перевод заглавия: Два новых комплекса 1,10-фенантролина Cu (II) и Ni (II) с анионами барбитуровой кислоты во внешней сфере: синтез, структура, спектроскопические, магнитные и термические свойства
Кл.слова (ненормированные):
Barbituric acids -- Phenanthroline complexes -- X-ray diffraction -- Thermal -- Spectroscopic and magnetic properties
Аннотация: Two new complexes [Cu(Phen)2(H2O)](Hba)2∙3H2O (1) and [Ni(Phen)3](Htba)2]∙Phen∙2H2O (2) (Phen = 1,10-phenanthroline, Hba− = barbiturate ion, Htba− = thiobarbiturate ion) have been synthesized and characterized by elemental analysis, single-crystal and powder XRD, magnetic measurements, TG-DSC, FT-IR, and Vis absorption spectra. Complex 1 shows a distorted square pyramidal geometry around the copper (II) metal center. The coordination around the Ni atom is a distorted octahedron NiN6. The 3D and 2D supramolecular structures of 1 and 2 are formed respectively by intermolecular H-bonds. Two N–H⋯O hydrogen bonds in 1, and N–H⋯O, N–H⋯S hydrogen bonds in 2 form infinite chains. As a result of π–π interactions, similar 4-membered zigzag chains in structures 1 and 2 respectively are formed.

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Держатели документа:
Siberian Federal University, 79 Svobodny Ave., Krasnoyarsk, 660041, Russian Federation
Laboratory of Crystal Physics, Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Bld. 38 Akademgorodok 50, Krasnoyarsk, 660036, Russian Federation
Department of Physics, Far Eastern State Transport University, 47 Seryshev Str., Khabarovsk, 680021, Russian Federation
Favorsky Institute of Chemistry, Siberian Branch, Russian Academy of Sciences, 1 Favorsky, Irkutsk, 664033, Russian Federation
Laboratory of Magnetic Dynamics, Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Bld. 38 Akademgorodok 50, Krasnoyarsk, 660036, Russian Federation

Доп.точки доступа:
Golovnev, N. N.; Molokeev, M. S.; Молокеев, Максим Сергеевич; Sterkhova, I. V.; Lesnikov, M. K.; Demina, A. V.; Patrin, G. S.; Патрин, Геннадий Семёнович
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    Golovnev, N. N.
    Three isomers in a (hydrogen L-Cysteinato)-thallium(I): Crystal structure, spectroscopic and thermal properties / N. N. Golovnev, M. S. Molokeev, M. K. Lesnikov // Polyhedron. - 2019. - Vol. 173. - Ст. 114141, DOI 10.1016/j.poly.2019.114141. - Cited References: 37. - The study was carried out within the public task of the Ministry of Education and Science of the Russian Federation to the Siberian Federal University (4.7666.2017/BP) in 2017–2019. X-ray data from single crystals and powder pattern were obtained with use the analytical equipment of Krasnoyarsk Center of collective use of SB RAS. . - ISSN 0277-5387
   Перевод заглавия: Три изомера в (H L-цистеин)-таллии(I): кристаллическая структура, спектроскопические и термические свойства
Кл.слова (ненормированные):
Cysteine -- Thallium -- Complex -- Isomers -- Structre
Аннотация: The isolation of thallium(I) complexes [Tl2(HCys)2]n (1) and [Tl4(HCys)4]n (2) {H2Cys = l-Cysteine} from aqueous solution by means of crystallization is reported herein. Polar crystals of 1 and 2 were crystallized in P21 and P212121 space groups respectively. Elemental analysis, XRD, IR, UV–Vis, TG-DSC and a single crystal X-ray diffraction were applied for characterizing the compounds. Linkage isomers 1 and 2 have 1D and 2D coordination polymeric structures respectively. The lone pair electrons of thallium(I) in 1–2 are stereo-chemically active. In 1, each of two independent Tl+ ions is coordinated by three HCys− ions forming TlS3O irregular polyhedron that is linked to each other by vertexes in an infinite chain. In 2, four independent Tl+ ions are coordinated by HCys− ions through S and O atoms, forming Tl1S3O2, Tl2S4, Tl3S3, Tl4S3 irregular polyhedrons. The crystallographic independent HCys− ions are linked to the metal ion differently, two are μ3-S,S,S-, one is μ4-O,S,S,S-, and one is μ4-O,O',S,S,S-coordinated ligands. The amine group of compounds 1 and 2 is in the form of an ammonium ion (–NH3+). The structures of 1–2 are stabilized by NH⋯O hydrogen bonds, thallophilic Tl⋯Tl and anagostic Tl⋯HC interactions. The spectroscopic and thermal properties of compounds were analyzed.

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Department of Chemistry, Siberian Federal University, 79 Svobodny Ave., Krasnoyarsk, 660041, Russian Federation
Laboratory of Crystal Physics, Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Bld. 38 Akademgorodok 50, Krasnoyarsk, 660036, Russian Federation
Department of Engineering Physics and Radioelectronic, Siberian Federal University, 79 Svobodny Ave., Krasnoyarsk, 660041, Russian Federation
Department of Physics, Far Eastern State Transport University, 47 Seryshev Str., Khabarovsk, 680021, Russian Federation

Доп.точки доступа:
Molokeev, M. S.; Молокеев, Максим Сергеевич; Lesnikov, M. K.
}
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10.

    Thiobarbiturate and barbiturate salts of pefloxacin drug: Growth, structure, thermal stability and IR-spectra / N. N. Golovnev [et al.] // J. Mol. Struct. - 2017. - Vol. 1149. - P. 367-372, DOI 10.1016/j.molstruc.2017.08.011. - Cited References: 41. - The study was carried out within the public task of the Ministry of Education and Science of the Russian Federation to the Siberian Federal University (4.7666.2017/BP) in 2017–2019. The reported study was funded by RFBR according to the research project 16-52-48010 and 17-52-53031. The X-ray data from single crystals were obtained with the use of the analytical equipment of the SB RAS Baikal Collective Use Center and using the analytical equipment of the SB RAS Krasnoyarsk Collective Use Center. . - ISSN 0022-2860
   Перевод заглавия: Тиобарбитуровая и барбитуровая соли пефлоксацина: Синтез, структура, термическая стабильность и ИК-спектры
Кл.слова (ненормированные):
Thiobarbituric acid -- Barbituric acid -- Pefloxacin -- X-ray diffraction -- Infrared spectroscopy -- Salts -- Thermal stability
Аннотация: Three new salts of pefloxacin (PefH) with thiobarbituric (H2tba) and barbituric (H2ba) acids, pefloxacinium 2-thiobarbiturate trihydrate, PefH2(Htba)·3H2O (1), pefloxacinium 2-thiobarbiturate, PefH2(Htba) (2) and bis(pefloxacinium barbiturate) hydrate, (PefH2)2(Hba)2·2.56H2O (3) are synthesized and structurally characterized by the X-ray single-crystal diffraction. The structures of 1–3 contain intramolecular hydrogen bonds C–H⋯F, O–H⋯O. Intermolecular hydrogen bonds N–H⋯O and O–H⋯O form a 2D plane network in 1. In 2 and 3, intermolecular hydrogen bonds N–H⋯O form the infinite chains. In 1–3, the Htba− and Hba− ions are connected with PefH2 + only by one intermolecular hydrogen bond N–H⋯O. In 2 and 3, two Htba− and Hba− ions are connected by two hydrogen bonds N–H⋯O. These pairs form infinite chains. All three structures are stabilized by the π−π interactions of the head-to-tail type between PefH2 + ions. Compounds 2 and 3 are characterized by powder XRD, TG-DSC and FT-IR.

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Держатели документа:
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 50Krasnoyarsk, 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 FavorskyIrkutsk, Russian Federation
Laboratory of Optical Materials and Structures, Institute of Semiconductor Physics, SB RASNovosibirsk, Russian Federation
Laboratory of Semiconductor and Dielectric Materials, Novosibirsk State UniversityNovosibirsk, Russian Federation

Доп.точки доступа:
Golovnev, N. N.; Molokeev, M. S.; Молокеев, Максим Сергеевич; Lesnikov, M. K.; Sterkhova, I. V.; Atuchin, V. V.
}
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11.

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.

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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.
}
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12.

    The cis-trans isomer transformation, spectroscopic and thermal properties of Li, Na, K 1,3-diethyl-2-thiobarbiturate complexes / N. N. Golovnev [et al.] // Polyhedron. - 2015. - Vol. 85. - P. 493-498, DOI 10.1016/j.poly.2014.09.011. - Cited References:42. - The study has been carried out within the public task of the Ministry ofEducation and Science of the Russian Federation for research engineeringat the Siberian Federal University in 2014. V.V.A. is partly supportedby the Ministry of Education and Science of the Russian Federation. . - ISSN 0277-5387
   Перевод заглавия: Трансформация цис-транс изомеров, спектроскопические и термические свойства Li, Na, K 1,3-диэтил-2-тиобарбитуратных комплексов

РУБ Chemistry, Inorganic & Nuclear + Crystallography
Рубрики:
CRYSTAL-STRUCTURE
   2-THIOBARBITURIC ACID
   STRUCTURAL-CHARACTERIZATION
   HYDROGEN-BOND
   DIFFRACTION
   THIOBARBITURATE
   CHEMISTRY
   NETWORKS
   SPECTRA
   SERIES
Кл.слова (ненормированные):
1,3-Diethyl-2-thiobarbituric acid -- Alkali ions -- X-ray diffraction -- Infrared spectroscopy -- Thermal analysis
Аннотация: Three new complexes of 1,3-diethyl-2-thiobarbituric acid (C8H11N2O2S, HDETBA) with Li+, Na+, K+ alkali ions were synthesized. The complexes have been prepared by neutralization of 1,3-diethyl-2-thiobarbituric acid with the corresponding metal hydroxide in aqueous solution. The colorless crystals have been investigated using X-ray single crystal and powder techniques and characterized by differential scanning calorimetry, thermogravimetry and infrared spectroscopy. The compounds of MDETBA with M = Li and M = Na crystallize in the monoclinic lattice with a = 10.678(1) Å, b = 7.2687(9) Å, c = 13.202(2) Å, β = 108.841(2)°, Z = 4, V = 969.8(2) Å3, S.G. P21/n and a = 10.534(2) Å, b = 7.604(1) Å, c = 14.186(1) Å, β = 108.964(4)°, Z = 4, V = 1074.6(3) Å3, S.G. P21/n, respectively. Сompound KDETBA crystallizes in the orthorhombic lattice with a = 4.2541(6) Å, b = 14.739(2) Å, c = 16.635(3) Å, Z = 4, V = 1043.1(3) Å3, S.G. P212121. In Li(I) and Na(I) complexes, the DETBA− ion is in cis-configuration and, in the K(I) complex, this ion is in trans-configuration. The reason for the transformation from cis- to trans-configuration has been rationalized.

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Держатели документа:
Siberian Fed Univ, Dept Chem, Krasnoyarsk 660041, Russia
SB RAS, Kirensky Inst Phys, Lab Crystal Phys, Krasnoyarsk 660036, Russia
SB RAS, Inst Chem & Chem Technol, Lab Catalyt Convers Small Mol, Krasnoyarsk 660036, Russia
SB RAS, Irkutsk Favorsky Inst Chem, Phys Chem Lab, Irkutsk 664033, Russia
Inst Semicond Phys, Lab Opt Mat & Struct, Novosibirsk 630090, 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, Sergey N.; Sterkhova, I. V.; Atuchin, V. V.; Ministry of Education and Science of the Russian Federation
}
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13.

    The 5-(isopropylidene)-2-thiobarbituric acid: Preparation, crystal structure, thermal stability and IR-characterization / N. N. Golovnev [et al.] // J. Mol. Struct. - 2014. - Vol. 1068. - P. 216-221, DOI 10.1016/j.molstruc.2014.04.024. - Cited References: 30. - V.V.A. is grateful to the Ministry of Education and Science of Russian Federation for the financial support of the investigation. . - ISSN 0022-2860. - ISSN 1872-8014
   Перевод заглавия: 5-(изопропилиден)-2-тиобарбитуровая кислота: Синтез, кристаллическая структура, термическая стабильность и ИК характеризация

РУБ Chemistry, Physical
Рубрики:
2-THIOBARBITURIC ACID
COMPLEXES
DERIVATIVES
Кл.слова (ненормированные):
5-(Isopropylidene)-2-thiobarbituric acid -- Synthesis -- Thiobarbituric acid -- X-ray diffraction -- Infrared spectroscopy -- Thermography
Аннотация: 5-(Isopropylidene)-2-thiobarbituric acid (1), C7H8N2O2S, has been crystallized by reacting 2-thiobarbituric acid with excessing acetone for 5–6 days under ambient conditions. The pale yellow crystals have been investigated using X-ray single crystal and powder techniques and characterized by differential scanning calorimetry, thermogravimetry and infrared spectroscopy. The compound crystallizes in the monoclinic system with a = 8.8268(19) Å, b = 12.044(3) Å, c = 8.0998(19) Å, β = 105.388(6)°, Z = 4, V = 830.2(3) Å3, space group P21/c. The geometric parameters of the heterocycle of the molecule 1 are similar to those found previously for the molecule of thionedicarbonyl tautomer in polymorphic modifications of 2-thiobarbituric acid. Infrared spectroscopy also evidences the thionedicarbonyl structure of the 1 heterocyclic ring. Intermolecular NH⋯O hydrogen bonds join the molecules in the chains along b axis. The 1 compound is thermally stable up to 230.0 °С and melts with decomposition at 261.4 °C. The results of mass spectrometric analysis are consistent with the structural parameters found by X-ray diffraction methods.

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Держатели документа:
Siberian Fed Univ, Krasnoyarsk 660041, Russia
Kirensky Inst Phys SB RAS, Krasnoyarsk 660036, Russia
Krasnoyarsk Sci Ctr SD RAS, Krasnoyarsk 660036, Russia
Russian Acad Sci, Inst Semicond Phys, Lab Opt Mat & Struct, Novosibirsk 630090, 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.; Головнёв, Николай Николаевич; Molokeev, M. S.; Молокеев, Максим Сергеевич; Tarasova, L. S.; Atuchin, V. V.; Vladimirova, N. I.
}
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14.

    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 Nd2O2SO4

РУБ 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.

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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
}
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15.

Golovnev, N. N.
Structures of bis(2-thiobarbiturato-O)tetraaquamagnesium and catena-[(μ2-2-thiobarbiturato-O,O)(2-thiobarbiturato-O) bis(μ2-aqua)diaquastrontium] monohydrate / N. N. Golovnev, M. S. Molokeev // Russ. J. Inorg. Chem. - 2014. - Vol. 59, Is. 2. - P. 72-78, DOI 10.1134/S0036023614020107. - Cited References: 15 . - ISSN 0036-0236. - ISSN 1531-8613

РУБ Chemistry, Inorganic & Nuclear
Рубрики:
2-THIOBARBITURIC ACID
COLLECTION
Аннотация: The crystal structures of bis(2-thiobarbiturato-O)tetraaquamagnesium Mg(H2O)(4)(HTBA-O)(2) I and catena-[(mu(2)-2-thiobarbiturato-O,O)(2-thiobarbiturato-O)bis(mu(2)-aqua)diaquastrontium] monohydrate catena-[Sr(mu(2)-H2O)(2)(H2O)(2)(mu(2)-HTBA-O,O)(HBTA-O)] (n) center dot nH(2)O (II), where H(2)TBA is 2-thiobarbituric acid C4H4N2O2S, have been determined. Crystal data for a=6.7598(2) , b = 7.6060(2) , c = 8.5797(2) , alpha = 79.822(2)A degrees, beta = 76.622(1)A degrees, gamma = 69.124(1)A degrees, V = 398.82(2) (3), space group P , Z = 1; for II: a = 20.8499(4) , b = 19.2649(5) , c = 4.14007(9) , beta = 92.023(2)A degrees, V = 1661.91(7) (3), space group P2(1)/n, Z = 4. The Mg2+ ion in I is bonded to six O atoms of two HTBA(-) ions and four water molecules that form a nearly regular octahedron. Each Sr2+ ion in II is coordinated to three oxygen atoms of three HTBA(-) ions and six water molecules that form an almost ideal tricapped trigonal prism. These polyhedra share edges to form infinite chains. Intermolecular hydrogen bonds create layered structures of I and II.

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Публикация на русском языке Головнёв, Николай Николаевич. Структуры бис-(2-тиобарбитурато-O)-тетрааквамагния и моногидрата катена-[(μ2-2-тиобарбитурато-O,O)-(2-тиобарбитурато-O)-бис(μ2-аква)-диаквастронция] [Текст] / Н. Н. Головнёв, М. С. Молокеев // Журн. неорг. химии : Наука, 2014. - Т. 59 № 2. - С. 200-206

Держатели документа:
Siberian Fed Univ, Krasnoyarsk 660041, Russia
Russian Acad Sci, Siberian Branch, Kirenskii Inst Phys, Krasnoyarsk 660036, Russia

Доп.точки доступа:
Molokeev, M. S.; Молокеев, Максим Сергеевич; Головнёв, Николай Николаевич
}
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16.

Golovnev, N. N.
Structure of two novel fluoroquinolone salts / N. N. Golovnev, A. D. Vasiliev, A. V. Demina // J. Struct. Chem. - 2021. - Vol. 62, Is. 2. - P. 236-243, DOI 10.1134/S0022476621020074. - Cited References: 23. - The reported study was funded by RFBR, project number 19-52-80003 . - ISSN 0022-4766
Кл.слова (ненормированные):
ciprofloxacinium dichloride -- tetrakis(levofloxacin) tris{hexachlorostannate(IV)} dichloride -- synthesis -- structure -- properties
Аннотация: Fluoroquinolone compounds with the composition CfH2+2, 2Cl–, H2O (CfH2Cl2·H2O (I)) and 4LevoH2+2, 3[SnCl6]2–, 2Cl–, 2H2O ((LevoH2)4[SnCl6]3Cl2·2H2O (II)) (Cf is ciprofloxacin, Levo is levofloxacin) are prepared. Their structures are determined by XRSCD. Crystals I are monoclinic: a = 8.6389(11) Å, b = 14.5486(19) Å, c = 14.8605(19) Å, β = 91.914(3)°, V = 1866.7(4) Å3, space group P21/c, Z = 4. Crystals II are triclinic: a = 12.4821(8) Å, b = 13.8144(8) Å, c = 15.2342(9) Å, α = 84.360(1)°, β = 79.265(1)°, γ = 74.038(1)°, V = 2478.3(3) Å3, space group P1, Z = 1. The structures are stabilized by multiple hydrogen bonds. The photoluminescent properties and thermal stability of compound I are considered.

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Публикация на русском языке Головнев Н. Н. Структура двух новых солей фторхинолонов [Текст] / Н. Н. Головнев, А. Д. Васильев, А. В. Демина // Журн. структ. химии. - 2021. - Т. 62 № 2. - С. 250-257

Держатели документа:
Siberian Federal University, Krasnoyarsk, Russian Federation
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Vasiliev, A. D.; Васильев, Александр Дмитриевич; Demina, A. V.
}
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17.

Golovnev, N. N.
Structure of two new compounds of fluoroquinolone antibiotics with mineral acids / N. N. Golovnev, A. D. Vasil’ev // Russ. J. Inorg. Chem. - 2016. - Vol. 61, Is. 11. - P. 1419-1422, DOI 10.1134/S0036023616110073. - Cited References: 19 . - ISSN 0036-0236
Кл.слова (ненормированные):
Single crystals -- X ray diffraction -- Crystallographic data -- Fluoroquinolone antibiotics -- Intra- and intermolecular hydrogen bonds -- Levofloxacin -- Mineral acid -- Pi interactions -- Space Groups -- Sparfloxacin -- Hydrogen bonds
Аннотация: New compounds of sparfloxacin (C19H22F2N4O3, SfH) and levofloxacin (C18H20FN3O4, LevoH) with mineral acids, namely, sparfloxacinium bromide (SfH · HBr, I) and levofloxacindium diperchlorate (LevoH · 2HClO4, II), have been synthesized and characterized by X-ray diffraction. Crystallographic data are a = 7.7151(7) Å, , b = 26.109(3) Å,с = 10.008(1) Å, β = 103.556(1)°, V = 1959.7(3) Å3, space group P21/n, Z = 4 for I and a = 9.727(6) Å, b = 20.440(12) Å, с = 12.286(7) Å, β = 104.327(8)°, V = 2367(2)Å3, space group P21, Z = 4 for II. The structures of these compounds are stabilized by intra- and intermolecular hydrogen bonds and π–π interaction between SfH2 + or LevoH3 2+ ions. © 2016, Pleiades Publishing, Ltd.

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Публикация на русском языке Головнев, Николай Николаевич. Структура двух новых соединений фторхинолоновых антибиотиков с минеральными кислотами [Текст] / Н. Н. Головнев, А. Д. Васильев // Журн. неорг. химии : Наука, 2016. - Т. 61 № 11. - С. 1472-1475

Держатели документа:
Siberian Federal University, Svobodnyi pr. 79, Krasnoyarsk, Russian Federation
Kirenskii Institute of Physics, Siberian Branch, Russian Academy of Sciences, Akademgorodok 50/38, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Vasil'ev, A. D.; Васильев, Александр Дмитриевич; Головнев, Николай Николаевич
}
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18.

Vasiliev, A. D.
Structure of the oxonium compound of pefloxacinium hexachloridostannate(IV) / A. D. Vasiliev, N. N. Golovnev // J. Struct. Chem. - 2018. - Vol. 59, Is. 3. - P. 641-645, DOI 10.1134/S0022476618030198. - Cited References: 13. - The work was performed within the State Contact of the Ministry of Education of the Russian Federation and the Siberian Federal University in 2017-2019 (4.7666.2017/BCh) . - ISSN 0022-4766. - ISSN 1573-8779

РУБ Chemistry, Inorganic & Nuclear + Chemistry, Physical
Рубрики:
ANTIBACTERIAL AGENTS
QUINOLONE
Кл.слова (ненормированные):
pefloxacinium cation -- oxonium cation -- chloride ion -- hexachloridostannate(IV) anion -- ionic compound -- crystal structure
Аннотация: The structure of tris{hexachloridostannate(IV)}-hexachloride-tetrakis(pefloxacinium)-tetraoxonium undecahydrate (CCDC 1551760) 4PefH 3 2+ , 4H3O+, 3SnCl 6 2− , 6Cl−, 11H2O (I), (PefH is pefloxacin) is determined. The I crystals are triclinic: a = 13.5474(10) Å, b = 15.2859(11) Å, c = 15.6586(11) Å, α = 94.467(1)°, β = 105.477(1)°, γ = 111.560(1)°, V = 2849.9(4) Å3, space group Pī, Z = 1. The structure is stabilized by multiple intermolecular hydrogen bonds and π–π-interactions between the PefH32+ ions.

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Публикация на русском языке

Держатели документа:
Siberian Fed Univ, Krasnoyarsk, Russia.
Russian Acad Sci, Kirensky Inst Phys, Siberian Branch, Fed Res Ctr KSC, Krasnoyarsk, Russia.

Доп.точки доступа:
Golovnev, N. N.; Васильев, Александр Дмитриевич; Ministry of Education of the Russian Federation [4.7666.2017/BCh]; Siberian Federal University [4.7666.2017/BCh]
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19.

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.

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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.
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20.

Golovnev, N. N.
Structure of potassium and cesium barbiturates / N. N. Golovnev, M. S. Molokeev, M. K. Lesnikov // Russ. J. Inorg. Chem. - 2018. - Vol. 63, Is. 10. - P. 1315-1321, DOI 10.1134/S0036023618100078. - Cited References: 25. - This work was performed within the state task from the Ministry of Education and Science to the Siberian Federal University in 2017-2019 (4.7666.2017/BCh). . - ISSN 0036-0236. - ISSN 1531-8613

РУБ Chemistry, Inorganic & Nuclear
Рубрики:
CRYSTAL-STRUCTURE
THERMAL-PROPERTIES
1,3-DIETHYL-2-THIOBARBITURATE
Кл.слова (ненормированные):
potassium and cesium barbiturates -- synthesis -- structure -- thermal decomposition
Аннотация: The structures of catena-[K(μ6-Hba−O,O,O,O′,O′,O″)] (I) and catena-[Cs(μ6-Hba–O,O,O′,O′,O″,O″)] (II), where Н2ba is barbituric acid C4H4N2O3, were characterized by powder X-ray diffraction. Crystallographic data: a = 14.1603 (4) Å, b = 3.68977 (9) Å, c = 10.9508 (3) Å, β = 82.226 (1)°, V = 566.90 (3) Å3, space group P21/n, Z = 4 for I; a = 14.652 (1) Å, b = 11.7275 (7) Å, c = 3.8098 (3) Å, β = 79.140 (6)°, V = 642.90 (8) Å3, space group C2/m, Z = 4 for II. The structural topologies of alkali metal complexes with barbituric acid and some its derivatives were compared. The thermal stability of complexes I and II in an air atmosphere was studied.

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Публикация на русском языке Головнев Н. Н. Структура барбитуратов калия и цезия [Текст] / Н. Н. Головнев, М. С. Молокеев, М. К. Лесников // Журн. неорг. химии. - 2018. - Т. 63 № 10. - С. 1299–1305

Держатели документа:
Siberian Fed Univ, Krasnoyarsk 660041, Russia.
Russian Acad Sci, Siberian Branch, Kirenskii Inst Phys, Krasnoyarsk 660036, Russia.
Far Eastern State Transport Univ, Khabarovsk 680021, Russia.

Доп.точки доступа:
Molokeev, M. S.; Молокеев, Максим Сергеевич; Lesnikov, M. K.; Ministry of Education and Science [4.7666.2017/BCh]
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