Hydrothermal synthesis, crystal structure and characterization of a new hexanuclear cobalt(II) complex comprised of octahedral and tetrahedral cobalt ions

被引：39

作者：

Kumagai, H

Oka, Y

Kawata, S

Ohba, M

Inoue, K

Kurmoo, M

Okawa, H

机构：

[1] Kyushu Univ, Dept Chem, Higashi Ku, Fukuoka 8128581, Japan

[2] Inst Mol Sci, Okazaki, Aichi 4448585, Japan

[3] Grad Univ Adv Studies, Japan Dept Struct Mol Sci, Okazaki, Aichi 4448585, Japan

[4] Shizuoka Univ, Dept Chem, Ohya, Shizuoka 4228529, Japan

[5] JST, PRESTO, Kawaguchi, Japan

[6] Inst Phys & Chim Mat Strasbourg, F-67037 Strasbourg, France

来源：

POLYHEDRON | 2003年 / 22卷 / 14-17期

关键词：

cobalt cluster; magnetic properties; crystal structures; hydrothermal synthesis; MCD;

D O I：

10.1016/S0277-5387(03)00139-6

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Reaction of Co(II) with phenylcinnamic acid and sodium hydroxide under hydrothermal conditions yields a new hexanuclear Co(II) complex, [Co-6(OH)(2)(L)(10)] (L = phenylcinnamate). [Co-6(OH)(2)(L)(10)] consists of two edge-sharing octahedral {CoO6} and four tetrahedral {CoO4} units linked through mu-carboxylate ligands and mu-hydroxide ions. The magnetic moment shows a large decrease from 300 to 25 K which amounts to antiferromagnetic coupling between cobalt ions in octahedral and tetrahedral sites leading to an s = 3 ground-state at low temperatures. (C) 2003 Elsevier Science Ltd. All rights reserved.

引用

页码：1917 / 1920

页数：4

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