Issue 6, 2015
From the journal:

Dalton Transactions

Linear trinuclear cobalt(ii) single molecule magnet†

Yuan-Zhu Zhang,*a   Andrew J. Brown,b   Yin-Shan Meng,a   Hao-Ling Sunc  and  Song Gao*a  

* Corresponding authors

a Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University, 100871 Beijing, China
E-mail: gaosong@pku.edu.cn, yuanzhuzhang@gmail.com

b Department of Chemistry, Texas A & M University, College Station, TX 77842-3012, USA

c Department of Chemistry, Beijing Normal University, Beijing 100875, P. R. China

Abstract

The introduction of NaBPh4 into a methanolic solution of CoCl2·6H2O and 2-[(pyridine-2-ylimine)-methyl]phenol (Hpymp) afforded {[CoII3(pymp)4(MeOH)2][BPh4]2}·2MeOH (1) with a centro-symmetrically linear trinuclear structure. Magnetic analysis of 1 exhibited significant intracluster ferromagnetic exchange (2.4 cm−1) and slow relaxation of magnetization in both zero and non-zero static fields below 5 K, giving the first [CoII3] single molecule magnet with an effective energy barrier of 17.2(3) cm−1 under a 500 Oe dc field.

Graphical abstract: Linear trinuclear cobalt(ii) single molecule magnet

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Article information

DOI
https://doi.org/10.1039/C4DT03545C
Article type
Paper
Submitted
18 Nov 2014
Accepted
09 Dec 2014
First published
11 Dec 2014

Dalton Trans., 2015,44, 2865-2870

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Linear trinuclear cobalt(II) single molecule magnet

Y. Zhang, A. J. Brown, Y. Meng, H. Sun and S. Gao, Dalton Trans., 2015, 44, 2865 DOI: 10.1039/C4DT03545C

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