Issue 40, 2013
From the journal:

Dalton Transactions

Magnetocaloric effect and slow magnetic relaxation in two only azido bridged ferromagnetic tetranuclear metal clusters†

Jiong-Peng Zhao,ab   Ran Zhao,b   Qian Yang,b   Bo-Wen Hu,b   Fu-Chen Liu*a  and  Xian-He Bu*b  

* Corresponding authors

a School of Chemistry and Chemical Engineering and Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion, Tianjin University of Technology, Tianjin 300384, China

b Department of Chemistry and Tianjin Key Lab on Metal and Molecule-based Material Chemistry, Nankai University, Tianjin 300071, China
E-mail: Fuchenliutj@yahoo.com, buxh@nankai.edu.cn
Fax: +86-22-23502458
Tel: +86-22-23502809

Abstract

Two MII tetranuclear complexes bridged only by azido, Mn4(N3)7.3Cl0.7L4 (1) and Co4(N3)8L4 (2) in which the four MII ions are precisely coplanar bridged only by six azido anions, were obtained by using 4,5-diazafluoren-9-one (L) as a corner ligand. Magnetic studies indicate that ferromagnetic coupling was conducted by the azido anions between MII ions. At low temperature, 1 exhibits a large magnetocaloric effect and 2 shows field-induced multiple magnetic relaxations.

Graphical abstract: Magnetocaloric effect and slow magnetic relaxation in two only azido bridged ferromagnetic tetranuclear metal clusters

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Article information

DOI
https://doi.org/10.1039/C3DT51655E
Article type
Paper
Submitted
21 Jun 2013
Accepted
22 Jul 2013
First published
23 Jul 2013

Dalton Trans., 2013,42, 14509-14515

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Magnetocaloric effect and slow magnetic relaxation in two only azido bridged ferromagnetic tetranuclear metal clusters

J. Zhao, R. Zhao, Q. Yang, B. Hu, F. Liu and X. Bu, Dalton Trans., 2013, 42, 14509 DOI: 10.1039/C3DT51655E

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