JAHN-TELLER DISTORTIONS AND CATION DISTRIBUTION IN CU(II)ME(II) [ME=MG,CO] HYDROXIDE NITRATE SOLID-SOLUTIONS - A SPECTROSCOPIC AND STRUCTURAL STUDY

被引：25

作者：

ATANASOV, M

ZOTOV, N

FRIEBEL, C

PETROV, K

REINEN, D

机构：

[1] UNIV MARBURG,FACHBEREICH CHEM,D-35032 MARBURG,GERMANY

[2] UNIV MARBURG,ZENTRUM MAT WISSENSCH,D-35032 MARBURG,GERMANY

[3] BULGARIAN ACAD SCI,SOFIA,BULGARIA

来源：

JOURNAL OF SOLID STATE CHEMISTRY | 1994年 / 108卷 / 01期

关键词：

D O I：

10.1006/jssc.1994.1006

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Mixed crystals Me2-xCux(OH)3NO3 (Me: Co2+, Mg2+) were investigated by spectroscopic (EPR, ligand field), structural, and magnetic methods. For 0 < x < 1 the Me(OH)4(ONO2)2 site (1) is occupied with great preference by Cu2+, because it provides a larger Jahn-Teller distortion than the Me (OH)5(ONO2) site (2). The magnetic exchange coupling between the Cu2+ polyhedra is rather large and of antiferromagnetic nature. The electronic and elastic interactions underlying the observed cooperative Jahn-Teller order pattern are analyzed. © 1994 Academic Press, Inc.

引用

页码：37 / 45

页数：9

共 29 条

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