Вид документа : Шифр издания : 54/I-76 Автор(ы) : Volkov V. L., Kadyrova N. I., Zakharova G. S., Kuznetsov M. V., Podval'naya N. V., Mikhalev K. N., Zainulin Yu. G. Заглавие : Ion State of Atoms and the Properties of Perovskite-Like Compound CaCu3V4O12 Место публикации : Russian Journal of Inorganic Chemistry. - 2007. - Vol. 52, № 3. - С. 329-333: il. Примечания : Bibliogr. : p. 333 (16 ref.) ISSN: 0036-0236 ББК : 54 Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ Ключевые слова (''Своб.индексиров.''): перовскитоподобные соединения--стехиометрия Аннотация: The binding energies and valence state of atoms in the perovskite-like compound CaCu3V4O12 have been determined using XPS spectroscopy. The stoichiometry of this phase is formulated as Ca2+Cu2+(V2(5+)V2(4+)O12). Under an air atmosphere, the phase interacts with water vapor and oxygen. As a result, Ca(OH)2 is formed on its surface, the Cu+ and V4+ ion concentrations decrease, and the Cu2+ and V5+ concentrations increase in association. Raman spectra show shortened cation–anion bond lengths and cation–anion–cation bond angles in CaCu3V4O12 compared to perovskite CuVO3; the two structures are alike. The electrical conductivity, magnetic susceptibility, thermal and sensor properties of CaCu3V4O12 in aqueous salt solutions have been studied Доп.точки доступа: Volkov, V. L.; Волков Виктор Львович; Kadyrova, N. I.; Zakharova, G. S.; Захарова Галина Степановна; Kuznetsov, M. V.; Кузнецов Михаил Владимирович; Podval'naya, N. V.; Mikhalev, K. N.; Zainulin, Yu. G.