Synthesis, structure and vibration spectra of the triple molybdates Tl5A0.5Hf1.5(MoO4)6, A= Ca, Sr, Ba, Pb

被引：8

作者：

Bazarov, B. G. ^{[1
]}

Sarapulova, A. E. ^{[1
]}

Klevtsova, R. F. ^{[2
]}

Glinskaya, L. A. ^{[2
]}

Fedorov, K. N. ^{[1
]}

Bazarova, Zh. G. ^{[1
]}

机构：

[1] Russian Acad Sci, Baikal Inst Nat Management, Siberian Div, Ulan Ude 670047, Buryat Republic, Russia

[2] Russian Acad Sci, Nikolaev Inst Inorgan Chem, Siberian Div, Novosibirsk 630090, Russia

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2008年 / 448卷 / 1-2期

基金：

俄罗斯基础研究基金会;

关键词：

triple molybdate; vibration spectra; vibrational mode; frequency; band; factor-group splitting; space group;

D O I：

10.1016/j.jallcom.2006.11.086

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The systems Tl2MoO4-AMoO(4)-Hf(MoO4)(2) (A = Ca, Sr, Ba, Ph) have been studied in their subsolidus regions using X-ray powder diffraction and differential thermal analysis. Intermediate phases of composition 5:13 are formed in these systems. The crystallographic and thermal characteristics of these phases have been determined. The vibration spectra of Tl(5)A(0.5)Hf(1.5) (MoO4)(6) (A = Ca, Sr, Ba, Pb) have been considered and analysed for each new compound. In the Raman spectra, the influence of the divalent cation on the bands of the v 1 vibrational mode and deformation fluctuations has been demonstrated. The bands of the nu(3)(F-2) vibrational mode are split in the IR spectra of the given triple molybdates. This splitting increases with the radius of the divalent cation. (C) 2006 Published by Elsevier B.V.

引用

页码：325 / 330

页数：6

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