Issue 10, 2011
From the journal:

Dalton Transactions

Hexanuclear FeIII2CoIII2MII2 (M = Cu, Ni, Mn) clusters based on Kläui's tripodal ligand and tricyanometalates: syntheses, structures and magnetic properties†

Ling-Chen Kang,a   Min-Xia Yao,a   Xin Chen,a   Yi-Zhi Li,a   You Song,a   Jing-Lin Zuo*a  and  Xiao-Zeng Youa  

* Corresponding authors

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

Abstract

With the use of Kläui's tripodal ligand, [(Cp)Co(P(O)(OEt)2)3]− (LCoEt, Cp = cyclopentadiene) as the auxiliary ligand to react with different metal salts and tricyanometalate building blocks, five neutral trimetallic hexanuclear complexes: [(Tp)2Fe2(CN)6Cu2(LCoEt)2]·6H2O (1, Tp = hydridotris(pyrazolyl)borate), [(Tp*)2Fe2(CN)6Cu2(LCoEt)2]·2H2O (2, Tp* = hydridotris(3,5-dimethyl-pyrazolyl)borate), [(pzTp)2Fe2(CN)6Cu2(LCoEt)2]·H2O·3MeOH (3, pzTp = tetra(pyrazolyl)borate), [(Tp)2Fe2(CN)6Ni2(LCoEt)2(MeCN)2]·2MeCN·2H2O (4) and [(Tp)2Fe2(CN)6Mn2(LCoEt)2(MeCN)2]·2MeCN (5), have been obtained and structurally characterized. Magnetic measurements confirm that there are ferromagnetic couplings between the cyano-bridged Fe and Cu/or Ni ions and antiferromagnetic interaction between the cyano-bridged Fe and Mn ions. Slow relaxation of the magnetization is observed in complexes 1 and 4, while complex 3 exhibits metamagnetic behavior with a critical field of 17.5 kOe.

Graphical abstract: Hexanuclear FeIII2CoIII2MII2 (M = Cu, Ni, Mn) clusters based on Kläui's tripodal ligand and tricyanometalates: syntheses, structures and magnetic properties

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Article information

DOI
https://doi.org/10.1039/C0DT00954G
Article type
Paper
Submitted
03 Aug 2010
Accepted
29 Oct 2010
First published
13 Dec 2010

Dalton Trans., 2011,40, 2204-2212

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Hexanuclear FeIII2CoIII2MII2 (M = Cu, Ni, Mn) clusters based on Kläui's tripodal ligand and tricyanometalates: syntheses, structures and magnetic properties

L. Kang, M. Yao, X. Chen, Y. Li, Y. Song, J. Zuo and X. You, Dalton Trans., 2011, 40, 2204 DOI: 10.1039/C0DT00954G

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