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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 свойства

РУБ 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.

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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]
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