COMPRESSED CU2+ IONS IN A BI4V2O11 OXIDE MATRIX .1. EPR AND UV-VISIBLE STUDY

被引:17
作者
ABOUKAIS, A
DELMAIRE, F
RIGOLE, M
HUBAUT, R
MAIRESSE, G
机构
[1] CNRS,CATALYSE HETEROGENE & HOMOGENE LAB,URA 402,VILLENEUVE DASCQ,FRANCE
[2] UNIV LILLE 1,CRISTALLOCHIM & PHYSICOCHIM SOLIDE LAB,CNRS,URA 452,F-59655 VILLENEUVE DASCQ,FRANCE
关键词
D O I
10.1021/cm00036a021
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
BICUVOX.x (Bi2V1-xCuxO5.5-1.5x) prepared with different atomic ratios Cu/V and calcined under a dry air at 1093 K have been characterized by electron paramagnetic resonance (EPR). The inverted g anisotropy values of the copper(II) ions EPR signal (g(perpendicular-to) > g(parallel-to)) can be interpreted by an octahedral symmetry strongly distorted with a compression of oxygen atoms along the apical direction. These results have been confirmed by UV-visible spectroscopy.
引用
收藏
页码:1819 / 1822
页数:4
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