On the possibility of magneto-structural correlations: detailed studies of di-nickel carboxylate complexes

Walsh, J. P. S., Sproules, S. , Chilton, N., Barra, A.-L., Timco, G. A., Collision, D., McInnes, E. J. L. and Winpenny, R. E. P. (2014) On the possibility of magneto-structural correlations: detailed studies of di-nickel carboxylate complexes. Inorganic Chemistry, 53(16), pp. 8464-8472. (doi:10.1021/ic501036h)

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Abstract

A series of water-bridged dinickel complexes of the general formula [Ni22-OH2)(μ2- O2CtBu)2(O2CtBu)2(L)(L0)] (L = HO2CtBu, L0 = HO2CtBu (1), pyridine (2), 3-methylpyridine (4); L = L0 = pyridine (3), 3-methylpyridine (5)) has been synthesized and structurally characterized by X-ray crystallography. The magnetic properties have been probed by magnetometry and EPR spectroscopy, and detailed measurements show that the axial zero-field splitting, D, of the nickel(ii) ions is on the same order as the isotropic exchange interaction, J, between the nickel sites. The isotropic exchange interaction can be related to the angle between the nickel centers and the bridging water molecule, while the magnitude of D can be related to the coordination sphere at the nickel sites.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Sproules, Dr Stephen
Authors: Walsh, J. P. S., Sproules, S., Chilton, N., Barra, A.-L., Timco, G. A., Collision, D., McInnes, E. J. L., and Winpenny, R. E. P.
College/School:College of Science and Engineering > School of Chemistry
Journal Name:Inorganic Chemistry
Publisher:American Chemical Society
ISSN:0020-1669
ISSN (Online):1520-510X
Copyright Holders:Copyright © 2014 American Chemical Society
First Published:First published in Inorganic Chemistry 53(16):8464-8472
Publisher Policy:Reproduced in accordance with the copyright policy of the publisher

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