INFRARED STUDIES ON SOME SUBSTITUTED COPPER CHROMITE SPINELS

被引：17

作者：

BASAK, D ^{[1
]}

GHOSE, J ^{[1
]}

机构：

[1] INDIAN INST TECHNOL, DEPT CHEM, KHARAGPUR 721302, W BENGAL, INDIA

来源：

SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY | 1994年 / 50卷 / 04期

关键词：

D O I：

10.1016/0584-8539(94)80008-1

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

Infrared studies on the spinel oxides Cu1-xMgxCr2O4, Cu1-xCdxCr2O4, CuCr2-xRhxO4 and CuCr2-xAlxO4 show the presence of three bands nu1, nu2 and nu3 in the studied frequency range. With the presence of more than one type of cation on either site of the spinel lattice, all three bands are broadened. Any change in the band position of nu1 is attributed to the change in the degree of tetragonality, and its intensity is dependent on the degree of inversion. Infrared spectra of the rhodite spinels show much sharper bands than the chromite spinels due to the absence of trigonal distortion in these spinel oxides.

引用

页码：713 / 718

页数：6

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