IR, RAMAN, AND X-RAY PHOTOELECTRON-SPECTROSCOPY INVESTIGATIONS OF THE ORDERED CUBIC PEROVSKITE LA2LIVO6

被引:11
作者
CHOY, JH [1 ]
BYEON, SH [1 ]
DEMAZEAU, G [1 ]
机构
[1] UNIV BORDEAUX 1,CNRS,CHIM SOLIDE LAB,F-33405 TALENCE,FRANCE
关键词
Spectroscopy; Infrared--Applications; -; Raman--Applications - Vanadium Compounds--Spectroscopic Analysis;
D O I
10.1016/0022-4596(88)90195-8
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
The ordered cubic perovskite La2LiVO6 has been prepared under 60 kbar oxygen pressure at 900°C. The double perovskite unit cell has a parameter of 7.746±0.003 angstrom. An ionic radius of pentavalent vanadium has been estimated for CN6. The assignment of the IR absorption and Raman scattering bands seems to confirm the cubic symmetry of the VO6 octahedra in the lattice. According to the XPS study the binding energy of the V2p3/2 orbital electron in La2LiVO6 is estimated as 516.8 eV, which is quite consistent with that of V2O5. Some examples of vanadium oxides, where vanadium has an environment close to octahedral are also discussed.
引用
收藏
页码:97 / 101
页数:5
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