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Astachov, F. M.
The Crystal and Molecular Structure of 1 – Phenyl – 2 – Nitroguanidine / F. M. Astachov, A. D. Vasil'ev, V. A. Revenko // Proc. 15th Sem. on New Trends in Res. of Energetic Mater. - 2012. - P431-435 . - ISBN 9785944581297
Аннотация: The molecular structure of 1-phenyl-2-nitroguanidine is nonplanar, but contains two almost planar fragments: nitroguanyl and phenyl groups. Unlike previously studied nitroguanidines, in 1-phenyl-2- nitroguanidine, the nitro group is turned to the secondary amino group. However, the structural parameters of the nitroguanyl group are little different from those of nitroguanidine and its alkyl derivatives. In the benzene ring, the symmetry in the geometric parameters is not observed, which is explained by the intermolecular interaction with the neighboring molecule.

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Доп.точки доступа:
Vasil'ev, A. D.; Васильев, Александр Дмитриевич; Revenko, V. A.; "New trends in research of energetic materials", international seminar (15 ; 2012 ; апр. ; 18-20 ; Pardubice, Czech Republic)
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Biodegradation of polyhydroxyalkanoates by soil microbial communities of different structures and detection of PHA degrading microorganisms / A. N. Boyandin [et al.] // Appl. Biochem. Microbiol. - 2012. - Vol. 48, Is. 1. - P. 28-36, DOI 10.1134/S0003683812010024. - Cited References: 39. - The work was supported by the project initiated by the Government of the Russian Federation for governmental support of scientific research conducted under the guidance of leading scientists at Russian institutions of higher learning (Agreement No. 11.G34.31.0013) and the Program of Integrated Research of the Presidium of the Siberian Branch of Russian Academy of Sciences (project no. 96). . - ISSN 0003-6838

РУБ Biotechnology & Applied Microbiology + Microbiology
Рубрики:
POLY-BETA-HYDROXYBUTYRATE
   CHAIN-LENGTH POLYHYDROXYALKANOATES
   DEGRADATION
   FILMS
   POLY(3-HYDROXYBUTYRATE-CO-3-HYDROXYVALERATE)
   BACTERIA
   ACID
Аннотация: Biodegradation of microbial linear polymers of hydroxyalkanoic acids (polyhydroxyalkanoates, PHAs) by soil microbial communities of different structures has been studied during two field seasons in different weather conditions. This process was shown to be influenced by the polymer chemical composition, temperature, humidity, and the microbial soil component. The PHA degradation was accompanied by a decrease in the polymer molecular weight and an increase in the degree of crystallinity, indicating the preferential destruction of the amorphous phase compared to the crystalline one. The quantity of the true PHA destructors developing at the surface of the polymer samples was lower than the quantity of accompanying bacteria. The dominant PHA degrading microorganisms under the test conditions were identified as bacteria of the genera Variovorax, Stenotrophomonas, Acinetobacter, Pseudomonas, Bacillus, and Xanthomonas and as micromycetes from Penicillium, Paecilomyces, Acremonium, Verticillium, and Zygosporium.

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Публикация на русском языке Биодеградация полигидроксиалканоатов почвенными микробиоценозами различной структуры и выявление микроорганизмов-деструкторов [Текст] / А. Н. Бояндин [и др.] // Прикл. биохимия и микробиол. : Наука, 2012. - Т. 48 № 1. - С. 35-44

Держатели документа:
[Boyandin, A. N.
Volova, T. G.] Russian Acad Sci, Inst Biophys, Siberian Branch, Krasnoyarsk 660036, Russia
[Prudnikova, S. V.] Siberian Fed Univ, Krasnoyarsk 660041, Russia
[Filipenko, M. L.
Khrapov, E. A.] Russian Acad Sci, Siberian Branch, Inst Chem Biol & Fundamental Med, Novosibirsk 630090, Russia
[Vasil'ev, A. D.] Russian Acad Sci, Siberian Branch, Kirenskii Inst Phys, Krasnoyarsk 660036, Russia

Доп.точки доступа:
Boyandin, A. N.; Бояндин, Анатолий Николаевич; Prudnikova, S. V.; Filipenko, M. L.; Khrapov, E. A.; Vasil'ev, A. D.; Васильев, Александр Дмитриевич; Volova, T. G.; Волова, Татьяна Григорьевна
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Conductivity study of Co3O2BO3 and Co 3-xFexO2BO3 oxyborates / N. V. Kazak [et al.] // Solid State Phenomena. - 2009. - Vol. 152-153. - P104-107, DOI 10.4028/www.scientific.net/SSP.152-153.104 . - ISSN 1012-0394
Кл.слова (ненормированные):
Doped cobaltite -- Electrical conductivity -- Ludwigite -- Variable-range hopping -- Crystal structure -- Electric conductivity -- Magnetic materials -- Single crystals -- Crystal structure -- Electric conductivity -- Magnetic materials -- Magnetism -- Single crystals -- Electrical conductivity -- Electrical resistivity -- Experimental data -- Mott variable-range hopping -- Oxyborates -- Temperature regions -- Variable-range hopping -- Doped cobaltite -- Ludwigite -- Variable range hopping -- Cobalt -- Cobalt
Аннотация: Single crystals of cobalt oxyborates Co3O2BO 3 and Co3-xFexO2BO3 were synthesized. The crystal structure and electric properties were investigated. The difference in the electrical resistivity behaviors was found. For parent Co3O2BO3 nor simple activation law, nor Mott variable range hopping (VRH) are acquirable to describe the experimental data in wide temperature region. In contrast for Co3-xFex O 2BO3 Mott's variable-range hopping conductivity clearly dominates.

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Держатели документа:
L.V. Kirensky Institute of Physics, SB of RAS, 660036, Akademgorodok, Krasnoyarsk, Russian Federation
Politechnical Institute, Siberian Federal University, Kirensky str. 26, 660074 Krasnoyarsk, Russian Federation

Доп.точки доступа:
Kazak, N. V.; Казак, Наталья Валерьевна; Ivanova, N. B.; Иванова, Наталья Борисовна; Rudenko, V. V.; Руденко, Валерий Васильевич; Ovchinnikov, S. G.; Овчинников, Сергей Геннадьевич; Vasil'Ev, A. D.; Васильев, Александр Дмитриевич; Knyazev, Yu. V.; Князев, Юрий Владимирович; Moscow International Symposium on Magnetism(4 ; 2008 ; Jun. ; Moscow)
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Crystal growth and cation order of Ni3-xCoxB2O6 oxyborates / S. Sofronova, E. Moshkina, A. Chernyshev [et al.] // CrystEngComm. - 2024, DOI 10.1039/D4CE00091A. - Cited References: 28. - The research was funded by Russian Science Foundation and Krasnoyarsk Regional Fund of Science, project № 23-12-20012 (https://rscf.ru/en/project/23-12-20012/) . - Article in press. - ISSN 1466-8033
Аннотация: A series of single crystals of Ni3-xCoxB2O6 compounds with the kotoite structure and with different concentrations of transition metal ions (x = 0; 0,19; 0,6; 0,93; 2) were obtained. The lattice parameters and atomic coordinates were determined using X-ray diffraction. The theoretical calculations using the WIEN2k package predict that nickel ions tend to occupy the 4f crystallographic position, while cobalt ions tend to occupy the 2a crystallographic positions. The study of the diffuse scattering spectra and comparison of the Racah parameters for the compounds Ni3B2O6 and Co2NiB2O6 provides experimental evidence that the nickel ions occupy crystallographic position 4f.

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Держатели документа:
Kirensky Institute of Physics of the Federal Research Center "Krasnoyarsk Science Center of the Siberian Branch of the Russian Academy of Sciences", 660036 Krasnoyarsk, Russia
Institute of Chemistry and Chemical Technology SB RAS, Federal Research Center “Krasnoyarsk Science Center SB RAS”, Russia

Доп.точки доступа:
Sofronova, S. N.; Софронова, Светлана Николаевна; Moshkina, E. M.; Мошкина, Евгения Михайловна; Chernyshev, A.; Чернышев, Артем Валерьевич; Vasil'ev, A. D.; Васильев, Александр Дмитриевич; Maximov, N.; Aleksandrovsky, A. S.; Александровский, Александр Сергеевич; Andryushchenko, T.; Андрющенко, Татьяна Александровна; Shabanov, A. V.; Шабанов, Александр Васильевич
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    Crystal structure and magnetism OF Co2-xNixB2O5 pyroborate / M. S. Platunov [et al.] // Moscow Int. Symp. on Magnet. (MISM-2011) : Book of abstracts. - 2011. - Ст. 22PO-I-59 . - P. 158
   Перевод заглавия: Кристаллическая структура и магнетизм пиробората Co2-xNixB2O5
Аннотация: The crystal structure and magnetic properties of Co3B2O6 single crystals are studied. Orthorhombic symmetry with space group Pnnm is detected at room temperature. The measurements of static magnetization and dynamic magnetic susceptibility reveal two magnetic anomalies at T 1 = 33 K and T 2 = 10 K and an easy-axis magnetic anisotropy. The effective magnetic moment indicates a high-spin state of the Co2+ ion. A spin-flop transition is found at low temperatures and H sf = 23 kOe. EXAFS spectra of the K-edge absorption of Co are recorded at various temperatures, the temperature-induced changes in the parameters of the local environment of cobalt are analyzed, and the effective Co-Co and Co-O distances are determined. The magnetic interactions in the crystal are analyzed in terms of an indirect coupling model.

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Доп.точки доступа:
Platunov, M. S.; Платунов, Михаил Сергеевич; Ivanova, N. B.; Иванова, Наталья Борисовна; Kazak, N. V.; Казак, Наталья Валерьевна; Bezmaternykh, L. N.; Безматерных, Леонард Николаевич; Vasil'ev, A. D.; Васильев, Александр Дмитриевич; Eremin, E. V.; Еремин, Евгений Владимирович; Ovchinnikov, S. G.; Овчинников, Сергей Геннадьевич; Moscow International Symposium on Magnetism(5 ; 2011 ; Aug. ; 21-25 ; Moscow)
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Crystal structure and magnetization of a Co3B2O6 single crystal / N. V. Kazak [et al.] // J. Exp. Theor. Phys. - 2013. - Vol. 117, Is. 1. - P. 94-107, DOI 10.1134/S1063776113060186. - Cited References: 43. - The synchrotron measurements were performed at the Kurchatov Center of Synchrotron Radiation and Nanotechnologies (state contract no. 16.552.11.7055).This work was supported by the Russian Foundation for Basic Research (project nos. 12-02-00175-a, 12-02-90410-Ukr_a, 12-02-31543mol_a, 13-02-00958-a), the President of the Russian Federation (grant no. NSh-1044.2012.2), the Siberian Branch of the Russian Academy of Sciences (project no. 38), the Ministry of Education and Science of the Russian Federation (project no. 8365), and an integration project of SO RAN-NAN of Belarus (project no. 29). . - ISSN 1063-7761

РУБ Physics, Multidisciplinary
Рубрики:
ABSORPTION FINE-STRUCTURE
   NICKEL ORTHOBORATE
   RAY
   GDFE3(BO3)(4)
   LUDWIGITE
   NI3(BO3)2
   NI3B2O6
   SPECTRA
Аннотация: The crystal structure and magnetic properties of Co3B2O6 single crystals are studied. Orthorhombic symmetry with space group Pnnm is detected at room temperature. The measurements of static magnetization and dynamic magnetic susceptibility reveal two magnetic anomalies at T (1) = 33 K and T (2) = 10 K and an easy-axis magnetic anisotropy. The effective magnetic moment indicates a high-spin state of the Co2+ ion. A spin-flop transition is found at low temperatures and H (sf) = 23 kOe. EXAFS spectra of the K-edge absorption of Co are recorded at various temperatures, the temperature-induced changes in the parameters of the local environment of cobalt are analyzed, and the effective Co-Co and Co-O distances are determined. The magnetic interactions in the crystal are analyzed in terms of an indirect coupling model.

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Публикация на русском языке Особенности кристаллической структуры и намагниченности монокристалла Co3 B2 O6 [Текст] / Н. В. Казак [и др.] // Журн. эксперим. и теор. физ. - 2013. - Т. 144 Вып. 1.- P.109-125

Держатели документа:
Russian Acad Sci, LV Kirensky Phys Inst, Siberian Branch, Krasnoyarsk 660036, Russia
Siberian Fed Univ, Krasnoyarsk 660074, Russia
Krasnoyarsk State Aerosp Univ, Kransoyarsk 660014, Russia
Kurchatov Inst, Russian Res Ctr, Moscow 123182, Russia

Доп.точки доступа:
Kazak, N. V.; Казак, Наталья Валерьевна; Platunov, M. S.; Платунов, Михаил Сергеевич; Ivanova, N. B.; Иванова, Наталья Борисовна; Knyazev, Yu. V.; Князев, Юрий Владимирович; Bezmaternykh, L. N.; Безматерных, Леонард Николаевич; Eremin, E. V.; Еремин, Евгений Владимирович; Vasil'ev, A. D.; Васильев, Александр Дмитриевич; Bayukov, O. A.; Баюков, Олег Артемьевич; Ovchinnikov, S. G.; Овчинников, Сергей Геннадьевич; Velikanov, D. A.; Великанов, Дмитрий Анатольевич; Zubavichus, Y. V.
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Crystal structures of room- and low-temperature phases in oxyfluoride (N H4) 2 KW O3 F3 / M. S. Molokeev, A. D. Vasiliev, A. G. Kocharova // Powder Diffraction. - 2007. - Т. 22, № 3. - С. 227-230, DOI 10.1154/1.2759491 . - ISSN 0885-7156

РИНЦ
Держатели документа:
L. V. Kirensky Institute of Physics,SB RAS

Доп.точки доступа:
Vasil'ev, A. D.; Васильев, Александр Дмитриевич; Kocharova, A. G.; Кочарова, Алла Георгиевна
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Crystallographic classification of distortions in layer perovskite-like crystals of K2NiF4 type. Structural phase-transition in Rb2CdCl4 / K. S. Aleksandrov [et al.] // Phase Transit. - 1987. - Vol. 8, Is. 4. - P. 352. - Cited References: 3 . - ISBN 0141-1594
Рубрики:
Condensed Matter

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Доп.точки доступа:
Aleksandrov, K. S.; Александров, Кирилл Сергеевич; Beznosikov, B. V.; Безносиков, Борис Валерьевич; Vasil'ev, A. D.; Васильев, Александр Дмитриевич; Kruglik, A. I.; Круглик, Анатолий Иванович; European crystallographic meeting(10 ; 1986 ; Aug ; 5-9 ; Wroclaw, Poland)
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    Distribution of Fe ions ludwigite structure of Co3-xFexO2BO3 / N. V. Kazak [и др.] // V Euro-Asian simposium "Trend in MAGnetism": Nanomagnetism : abstracts. - Ekaterinburg, 2010. - P. 378
   Перевод заглавия: Распределение ионов Fe в структуре людвигита Co3-xFexO2BO3

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Доп.точки доступа:
Kazak, N. V.; Казак, Наталья Валерьевна; Bartolome, J.; Rudenko, V. V.; Руденко, Валерий Васильевич; Vasil'ev, A. D.; Васильев, Александр Дмитриевич; Bayukov, O. A.; Баюков, Олег Артемьевич; Knyazev, Yu.V.; Князев, Юрий Владимирович; Platunov, M. S.; Платунов, Михаил Сергеевич; Euro-Asian Symposium "Trends in MAGnetism"(4 ; 2010 ; Jun.-Jul. ; Ekaterinburg); "Trends in MAGnetism", Euro-Asian Symposium(4 ; 2010 ; Jun.-Jul. ; Ekaterinburg)
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10.

Effect of cation substitution in fluorine-oxygen molybdates (NH4)(2-x) A (x) MoO2F4 / E. V. Bogdanov [et al.] // Phys. Solid State. - 2011. - Vol. 53, Is. 2. - P. 303-308, DOI 10.1134/S1063783411020065. - Cited References: 11. - This study was supported by the Russian Foundation for Basic Research (project no. 09-02-00062) and the Council on Grants from the President of the Russian Federation for Support of Leading Scientific Schools of the Russian Federation (project no. NSh-1011.2008.2). . - ISSN 1063-7834

РУБ Physics, Condensed Matter
Рубрики:
PHASE-TRANSITIONS
   CRYSTALS
   (NH4)(2)WO2F4
   DIFFRACTION
   OXYFLUORIDE
   MECHANISM
   DISORDER
Аннотация: Thermophysical and structural studies of (NH4)(2 - x) A (x) MoO2F4 (A = Cs, Rb, K) solid solutions of oxyfluorides have been performed. The character of the influence of cation substitutions on the stability of the initial phase (space group Cmcm) and on the mechanism of phase transitions has been elucidated.

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Держатели документа:
[Bogdanov, E. V.
Vasil'ev, A. D.
Flerov, I. N.] Russian Acad Sci, LV Kirensky Phys Inst, Siberian Branch, Krasnoyarsk 660036, Russia
[Vasil'ev, A. D.
Flerov, I. N.] Siberian Fed Univ, Inst Engn Phys & Radioelect, Krasnoyarsk 660074, Russia
[Laptash, N. M.] Russian Acad Sci, Inst Chem, Far Eastern Branch, Vladivostok 690022, Russia
ИФ СО РАН
Kirensky Institute of Physics, Siberian Branch, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk 660036, Russian Federation
Institute of Engineering Physics and Radioelectronics, Siberian Federal University, ul. Kirenskogo 28, Krasnoyarsk 660074, Russian Federation
Institute of Chemistry, Far Eastern Branch, Russian Academy of Sciences, pr. Stoletiya Vladivostoka 159, Vladivostok 690022, Russian Federation

Доп.точки доступа:
Bogdanov, E. V.; Богданов, Евгений Витальевич; Vasil'ev, A. D.; Васильев, Александр Дмитриевич; Flerov, I. N.; Флёров, Игорь Николаевич; Laptash, N. M.
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