Issue 41, 2007
From the journal:

Dalton Transactions

Cobalt diphosphonate with a new double chain structure exhibiting field-induced magnetic transition†‡§

Zai-Chao Zhang,a   Song Gaob  and  Li-Min Zheng*a  

* Corresponding authors

a State Key Laboratory of Coordination Chemistry, Coordination Chemistry Institute, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, P. R. China
E-mail: lmzheng@netra.nju.edu.cn
Fax: +86-25-83314502

b State Key Laboratory of Rare Earth Materials and Applications, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, P. R. China

Abstract

A cobalt diphosphonate Co(H2O){C5H5N–CH2CH(OH)(PO3)(PO3H)} (1) has been synthesized under hydrothermal conditions. It shows a novel type of double chain structure in which one of the two CPO3 terminus caps on top of the {Co2(µ-O)2} dimer while the other connects the adjacent {Co2(µ-O)2} dimers into a chain. The magnetization measurements reveal that dominant antiferromagnetic interactions are mediated between the magnetic centers and the compound experiences a field-induced magnetic transition at low temperature with Hc of ca. 15 kOe at 1.8 K.

Graphical abstract: Cobalt diphosphonate with a new double chain structure exhibiting field-induced magnetic transition

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Article information

DOI
https://doi.org/10.1039/B709474D
Article type
Paper
Submitted
27 Jun 2007
Accepted
08 Aug 2007
First published
21 Aug 2007

Dalton Trans., 2007, 4681-4684

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Cobalt diphosphonate with a new double chain structure exhibiting field-induced magnetic transition

Z. Zhang, S. Gao and L. Zheng, Dalton Trans., 2007, 4681 DOI: 10.1039/B709474D

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