Инд. авторы:	Voronko Yu.K., Sobol A.A., Shukshin V.E., Fedorov P.P., Kokh A.E., Kononova N.G.
Заглавие:	Raman spectra and structure of tungsten-oxygen groups in crystalline, molten, and glassy NaIn(WO 4) 2
Библ. ссылка:	Voronko Yu.K., Sobol A.A., Shukshin V.E., Fedorov P.P., Kokh A.E., Kononova N.G. Raman spectra and structure of tungsten-oxygen groups in crystalline, molten, and glassy NaIn(WO 4) 2 // Inorganic Materials. - 2009. - Vol.45. - Iss. 2. - P.182-188. - ISSN 0020-1685. - EISSN 1608-3172.
Внешние системы:	DOI: 10.1134/S0020168509020137; SCOPUS: 2-s2.0-59849120648;
Реферат:	eng: Room-temperature polarized Raman spectra of NaIn(WO 4) 2 single crystals have been studied in detail. We have identified all of the vibrational modes corresponding to the assumed C2/c space group of this material. Using high-temperature Raman spectroscopy, we have studied the structure of NaIn(WO 4) 2 in the range 300-1600 K. The results indicate that NaIn(WO 4) 2 melts incongruently at 1253 K, with the formation of solid In 2(WO 4) 3. Above 1350 K, the melt becomes homogeneous. In contrast to crystalline NaIn(WO 4) 2, which contains tungsten in octahedral oxygen coordination, the tungsten-oxygen groups in the homogeneous melt have the form of isolated [WO 4] tetrahedra. Quenching of a homogenized NaIn(WO 4) 2 melt is found to result in the formation of a glassy phase. © 2009 Pleiades Publishing, Ltd.
Издано:	2009
Физ. характеристика:	с.182-188