Ligands effects on the magnetic anisotropy of tetrahedral cobalt complexes

The effect of ligands with heavy donor atoms on the magnetic anisotropy of the pseudo-tetrahedral cobalt complexes, Co(quinoline)2I2 (1) and Co(EPh3)2I2 (2-3) (E = P, As) has been investigated. The axial zero-field splitting parameter D was found to vary from +9.2 cm(-1) in 1 to -36.9 cm(-1) in 2 an...

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Bibliographic Details
Published in:Chemical communications (Cambridge, England) England), 2014-10, Vol.50 (82), p.12266-12269
Main Authors: Saber, Mohamed R, Dunbar, Kim R
Format: Article
Language:English
Subjects:
Atomic properties
Cobalt
Ligands
Magnetic anisotropy
Magnetization
Parameters
Splitting
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Summary:The effect of ligands with heavy donor atoms on the magnetic anisotropy of the pseudo-tetrahedral cobalt complexes, Co(quinoline)2I2 (1) and Co(EPh3)2I2 (2-3) (E = P, As) has been investigated. The axial zero-field splitting parameter D was found to vary from +9.2 cm(-1) in 1 to -36.9 cm(-1) in 2 and -74.7 cm(-1) in 3. Compounds 2 and 3 exhibit slow relaxation of the magnetization up to 4 K under an applied dc field, indicating SMM behavior.
ISSN:1359-7345
1364-548X
DOI:10.1039/c4cc05724d