Raman scattering in BIMEVOX (ME = Mg, Ni, Cu, Zn) single crystals

被引:16
作者
Bacewicz, R [1 ]
Kurek, P [1 ]
机构
[1] Warsaw Univ Technol, Inst Phys, PL-00662 Warsaw, Poland
关键词
BIMEVOX; vanadium compounds; Raman scattering; crystal structure;
D O I
10.1016/S0167-2738(99)00262-3
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 Raman spectra of BIMEVOX (ME = Mg, Ni, Cu, Zn) single crystals are reported. The main features of the spectra observed in the 600 to 900 cm(-1) frequency range are assigned to the stretching vibrations of the V-O bonds. Interpretation of the Raman spectra is based on the diatomic approximation and the correlation between the frequencies of stretching vibrations of vanadium-oxygen bonds and bond lengths. V-O bond orders are determined from an empirical relation between these frequencies and bond orders. The results point to predominantly tetrahedral coordination of vanadium in the studied BIMEVOX systems. (C) 2000 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:151 / 156
页数:6
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