PREPARATION, CRYSTAL-STRUCTURE, AND VIBRATIONAL-SPECTRA OF PEROVSKITE-TYPE MIXED OXIDES LAM(Y)M'(1-Y)O(3) (M,M'=MN, FE, CO)

被引：29
|
作者：
WU, Y
YU, ZL
LIU, ST
机构：
[1] Changchun Institute of Applied Chemistry, Academia Sinica, Changchun
[2] Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023
来源：
JOURNAL OF SOLID STATE CHEMISTRY | 1994年 / 112卷 / 01期
关键词：
D O I：
10.1006/jssc.1994.1280
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
Three series of samples LaMnyCo1-yO3+/-lambda, LaFeyMn1-yO3+/-lambda, and LaFeyCo1-yO3+/-lambda (y = 0.0 to 1.0) with Perovskite structure were prepared by an explosion method different from the generally used ceramic techniques. The variation of crystal structure, the infrared spectra, and the relationship between them were discussed in detail. The change of infrared absorption reflects the change of the crystal structure and the mixing of transition metals on B sites significantly influences the strength of the B-O bond. These influences are attributed to geometrical effects for LaFeyMn1-y O-3+/-lambda and LaFeyCo1-yO3+/-lambda and to electronic effects for LaMnyCO1-yO3+/-lambda. (C) 1994 Academic Press, Inc.
引用
收藏
页码：157 / 160
页数：4
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