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Synthesis and characterisation of Fe6 and Fe12 clusters using bicine

Graham, K., Darwish, A., Ferguson, A., Parsons, S. and Murrie, M. (2009) Synthesis and characterisation of Fe6 and Fe12 clusters using bicine. Polyhedron, 28(9-10), pp. 1830-1833. (doi: 10.1016/j.poly.2009.01.018)

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Publisher's URL: http://dx.doi.org/10.1016/j.poly.2009.01.018

Abstract

Reaction of bicine {BicH3, N,N-bis(2-hydroxyethyl)glycine} with an Fe(III) oxo-centered pivalate triangle in MeCN in the presence of Et<sub>2</sub>NH yields [Et<sub>2</sub>NH<sub>2</sub>]<sub>2</sub>[Fe<sub>6</sub>O<sub>2</sub>(OH)<sub>2</sub>(Bic)<sub>2</sub>(O<sub>2</sub>CCMe<sub>3</sub>)<sub>8</sub>], which possesses an S = 5 ground state. Changing the base to NaOMe produces [Fe<sub>12</sub>O<sub>4</sub>(Bic)<sub>4</sub>(HBic)<sub>4</sub>(O<sub>2</sub>CCMe<sub>3</sub>)<sub>8</sub>], which contains two Fe6 units bridged by the carboxylate arms from the bicine ligands. The complex displays strong antiferromagnetic coupling leading to an S = 0 ground state.

Item Type:Articles
Keywords:Iron(III), bicine, polynuclear molecular magnetism.
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Murrie, Professor Mark
Authors: Graham, K., Darwish, A., Ferguson, A., Parsons, S., and Murrie, M.
Subjects:Q Science > QD Chemistry
College/School:College of Science and Engineering > School of Chemistry
Journal Name:Polyhedron
Publisher:Elsevier
ISSN:0277-5387
First Published:First published in Polyhedron 28(9-10):1830-1833
Publisher Policy:Reproduced in accordance with the copyright policy of the publisher

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