Crystal structure and magnetic behavior of Cu3(O2C16H23)6 • 1.2 C6H12.: An unexpected structure and an example of spin frustration

被引：40

作者：

Clérac, R ^{[1
]}

Cotton, FA ^{[1
]}

Dunbar, KR ^{[1
]}

Hillard, EA ^{[1
]}

Petrukhina, MA ^{[1
]}

Smucker, BW ^{[1
]}

机构：

[1] Texas A&M Univ, Dept Chem, Mol Struct & Bonding Lab, College Stn, TX 77842 USA

来源：

COMPTES RENDUS DE L ACADEMIE DES SCIENCES SERIE II FASCICULE C-CHIMIE | 2001年 / 4卷 / 04期

基金：

美国国家科学基金会;

关键词：

copper; carboxylate; crystal structure; trinuclear complex; magnetic properties;

D O I：

10.1016/S1387-1609(01)01233-6

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A copper(II) carboxylate has been obtained from the reaction of basic copper carbonate. CuCO3. Cu(OH)(2), with 2,4,5-triisopropylbenzoic acid. It contains a trinuclear Cu-3(6+) core with three-fold symmetry, with each pair of copper atoms bridged by two carboxylate ligands. The Cu . . . Cu separations are 3.131(3) Angstrom, precluding any direct bonding. Magnetic susceptibility data from 1.8 to 380 K at 1000 G indicate a doublet ground state, (g approximate to 2.1) between 10-50 K (mu (eff) = 1.80 mu (B)) Above 50 K, the magnetic moment increase to 2.69 mu (B) at 380 K, as expected for an equilateral triangular system of CuII with antiferromagnetic interactions between spin carriers. (C) 2001 Academie des sciences / Editions scientifiques et medicales Elsevier SAS.

引用

页码：315 / 319

页数：5

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