| Инд. авторы: | Kartashev A.V., Molokeev M.S., Isaenko L.I., Zhurkov S.A., Fokina V.D., Gorev M.V., Flerov I.N. |
| Заглавие: | Heat capacity and structure of Rb 2KMeO 3F 3 (Me: Mo, W) elpasolites |
| Библ. ссылка: | Kartashev A.V., Molokeev M.S., Isaenko L.I., Zhurkov S.A., Fokina V.D., Gorev M.V., Flerov I.N. Heat capacity and structure of Rb 2KMeO 3F 3 (Me: Mo, W) elpasolites // Solid State Sciences. - 2012. - Vol.14. - Iss. 1. - P.166-170. - ISSN 1293-2558. - EISSN 1873-3085. |
| Внешние системы: | DOI: 10.1016/j.solidstatesciences.2011.11.019; SCOPUS: 2-s2.0-83555174643; |
| Реферат: | eng: X-ray and heat capacity measurements were performed on Rb 2KMoO 3F 3 and Rb 2KWO 3F 3 single crystals. A significant difference in the thermal parameters of atoms in 4a and 8c sites of Fm-3m structure was found, which depended on the central atom. Calorimetric measurements have revealed the heat capacity anomalies at 195 and 67 K, respectively, in Rb 2KMoO 3F 3 and Rb 2KWO 3F 3. The standard molar enthalpy and entropy were determined. Entropy changes associated with phase transitions in oxyfluorides under study and related Rb 2KTiOF 5 are discussed. © 2011 Elsevier Masson SAS. All rights reserved.
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| Ключевые слова: | Crystal structure; Oxyfluorides; Phase transition; Calorimetric measurements; Crystal atomic structure; Specific heat; Single crystals; Rubidium; Phase transitions; Entropy; Crystal structure; Calorimetry; Thermal parameters; Standard molar enthalpy; Oxyfluorides; Heat capacity measurements; Entropy changes; Calorimetry; Central atom; |
| Издано: | 2012 |
| Физ. характеристика: | с.166-170 |