Large zero-field splittings of the ground spin state arising from antisymmetric exchange effects in heterometallic triangles

Magee, S. A., Sproules, S. , Barra, A.-L., Timco, G. A., Chilton, N. F., Collison, D., Winpenny, R. E. P. and McInnes, E. J. L. (2014) Large zero-field splittings of the ground spin state arising from antisymmetric exchange effects in heterometallic triangles. Angewandte Chemie (International Edition), 53(21), pp. 5310-5313. (doi: 10.1002/anie.201400655)

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Publisher's URL: http://dx.doi.org/10.1002/anie.201400655

Abstract

[Ru<sub>2</sub>Mn(O)(O<sub>2</sub>C<i>t</i>Bu)<sub>6</sub>(py)<sub>3</sub>] has an S=5/2 ground state with a very large zero-field splitting (ZFS) of <i>D</i>=2.9 cm<sup>−1</sup>, as characterized by EPR spectroscopy at 4–330 GHz. This is far too large to be due to the Mn<sup>II</sup> ion (<i>D</i> <0.2 cm<sup>−1</sup>), as shown from the {Fe<sub>2</sub>Mn} analogue, but can be modeled by antisymmetric exchange effects.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Sproules, Dr Stephen
Authors: Magee, S. A., Sproules, S., Barra, A.-L., Timco, G. A., Chilton, N. F., Collison, D., Winpenny, R. E. P., and McInnes, E. J. L.
College/School:College of Science and Engineering > School of Chemistry
Journal Name:Angewandte Chemie (International Edition)
Publisher:Wiley - V C H Verlag GmbH & Co. KGaA
ISSN:1433-7851
ISSN (Online):1521-3773

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