Two Stage Magnetic Ordering and Spin Idle Behavior of the Coordination Polymer Co3(OH)2(C4O4)2•3H2O Determined Using Neutron Diffraction

被引：18

作者：

Mole, Richard A. ^{[2
]}

Stride, John A. ^{[3
]}

Henry, Paul F. ^{[4
]}

Hoelzel, Markus ^{[5
]}

Senyshyn, Anatoliy

Alberola, Antonio ^{[6
]}

Gomez Garcia, Carlos J. ^{[7
]}

Raithby, Paul R. ^{[8
]}

Wood, Paul T. ^{[1
]}

机构：

[1] Univ Cambridge, Univ Chem Lab, Cambridge CB2 1EW, England

[2] Tech Univ Munich, Forsch Neutronenquelle Heinz Maier Leibnitz FRM 2, D-85747 Garching, Germany

[3] Univ New S Wales, Sch Chem, Sydney, NSW 2052, Australia

[4] Inst Laue Langevan, F-38042 Grenoble 9, France

[5] Tech Univ, Fachgebiet Strukturforsch, FB Mat & Geowissensch, D-64287 Darmstadt, Germany

[6] Univ Jaume 1, Dpto Quim Fis & Analit, Castellon de La Plana 12071, Spain

[7] Univ Valencia, Inst Ciencia Mol, Valencia 46980, Spain

[8] Univ Bath, Dept Chem, Bath BA2 7AY, Avon, England

来源：

INORGANIC CHEMISTRY | 2011年 / 50卷 / 06期

基金：

英国工程与自然科学研究理事会;

关键词：

METAL-ORGANIC FRAMEWORKS; HYDROGEN STORAGE; SITES;

D O I：

10.1021/ic101897a

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

We report the magnetic structure of two of the magnetically ordered phases of Co-3(OH)(2)(C4O4)2 center dot 3H(2)O, a coordination polymer that consists of a triangular framework decorated with anisotropic Co(II) ions. The combination of neutron diffraction experiments and magnetic susceptibility data allows us to identify one phase as displaying spin idle behavior, where only a fraction of the moments order at intermediate temperatures, while at the lowest temperatures the system orders fully. This novel magnetic behavior is discussed within the framework of a simple Hamiltonian and representational analysis and rationalizes this multiphase behavior by considering the combination of frustration and anisotropy.

引用

页码：2246 / 2251

页数：6

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