Linear trinuclear cobalt(ii) single molecule magnet.

Authors :: Zhang, Yuan-Zhu
Meng, Yin-Shan
Gao, Song
Brown, Andrew J.
Sun, Hao-Ling
Source :: Dalton Transactions: An International Journal of Inorganic Chemistry. 2015, Vol. 44 Issue 6, p2865-2870. 6p.
Publication Year :: 2015
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. [ABSTRACT FROM AUTHOR]

Subjects :: *SINGLE molecule magnets
*COBALT
*ISING model
*JAHN-Teller effect
*LIGAND field theory

Language :: English
ISSN :: 14779226
Volume :: 44
Issue :: 6
Database :: Academic Search Index
Journal :: Dalton Transactions: An International Journal of Inorganic Chemistry
Publication Type :: Academic Journal
Accession number :: 100753427
Full Text :: https://doi.org/10.1039/c4dt03545c