EVIDENCE FOR SHORT Cu(I)-Cu(I) DISTANCES IN COPPER-EXCESS SPINELS FROM EXAFS

被引：4

作者：

Benazeth, S. ^{[1
]}

Danot, M. ^{[2
]}

Colombet, P. ^{[2
]}

Dexpert, H. ^{[3
]}

Lagarde, P. ^{[3
]}

机构：

[1] Univ Paris 05, Lab Chim Minerale Struct, UA 200, F-75270 Paris 06, France

[2] Univ Nantes, Lab Chim Solides, UA 279, F-44072 Nantes, France

[3] Univ Paris 11, LURE, CNRS UPS, F-91405 Orsay, France

来源：

JOURNAL DE PHYSIQUE | 1986年 / 47卷 / C-8期

关键词：

D O I：

10.1051/jphyscol:19868148

中图分类号：

学科分类号：

摘要：

The Cu2xCr2xSn2-2xS4 spinel compounds have been investigated using EXAFS, especially as far as the structural features of monovalent copper excess are concerned, i.e. for 2x > 1. It has been shown that part of Cu is tetrahedrally surrounded (8a-sites) whereas the remaining part is triangularly coordinated in the vicinity of a face of the usually empty octahedral sites. In addition, the evidence for short Cu-Cu distances (2.35 angstrom) is given, in agreement with the octahedral- and tetrahedral- site arrangement.

引用

页码：247 / 250

页数：4

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