Issue 46, 2010
From the journal:

Dalton Transactions

Synthesis, structure and magnetic properties of two new azido-CoII coordination architectures: From ferromagnetic coupling to single-chain-magnets†

Bo-Wen Hu,a   Jiong-Peng Zhao,a   Qian Yang,a   Xiao-Feng Zhang,a   M. Evangelisti,c   E. C. Sañudo*b  and  Xian-He Bu*a  

* Corresponding authors

a Department of Chemistry, and Tianjin Key Laboratory of Metal & Molecule-based Material Chemistry, Nankai University, Tianjin, China
E-mail: buxh@nankai.edu.cn, carolina.sanudo@qi.ub.es
Fax: +86-22-23502458

b Instituto de Ciencia de Materiales de Aragón, CSIC-Universidad de Zaragoza, Departamento de Física de la Materia Condensada, Zaragoza

c Institut de Nanociència Nanotecnologia Department de Química Inorgànica, Universitat de Barcelona, Diagonal, Barcelona, Spain

Abstract

Two new azido-CoII complexes with pyrazine carboxylato ligands, [Co(N3)(L)·H2O]n (L = pyrazine-2-carboxylato) (1) and [CoNa(N3)2(L)]n (2), have been obtained by carefully tuning the CoII : N3− ratio. Here we present the structural and magnetic characterization of these new species. Modulation of the coordination environment of CoII leads to a variation of the magnetic properties of the obtained compounds. Complex 1 exhibits ferromagnetically coupled [Co2] units that form the rungs of the ladder with a nearly negligible coupling between these units, while complex 2 is a 2D arrangement of 1D CoII single-chain magnets.

Graphical abstract: Synthesis, structure and magnetic properties of two new azido-CoII coordination architectures: From ferromagnetic coupling to single-chain-magnets

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Article information

DOI
https://doi.org/10.1039/C0DT00566E
Article type
Paper
Submitted
28 May 2010
Accepted
14 Sep 2010
First published
25 Oct 2010

Dalton Trans., 2010,39, 11210-11217

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Synthesis, structure and magnetic properties of two new azido-CoII coordination architectures: From ferromagnetic coupling to single-chain-magnets

B. Hu, J. Zhao, Q. Yang, X. Zhang, M. Evangelisti, E. C. Sañudo and X. Bu, Dalton Trans., 2010, 39, 11210 DOI: 10.1039/C0DT00566E

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