Spin frustration and concealed asymmetry: structure and magnetic spectrum of [Fe3O(O2CPh)6(py)3]ClO4·py

Sowrey, Frank E., Tilford, Claire, Wocadlo, Sigrid, Anson, Christopher E., Powell, Annie K., Bennington, Stephen M., Montfrooij, Wouter, Jayasooriya, Upali A. and Cannon, Roderick D. (2001) Spin frustration and concealed asymmetry: structure and magnetic spectrum of [Fe3O(O2CPh)6(py)3]ClO4·py. Dalton Transactions (6). pp. 862-866. ISSN 1477-9226

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Abstract

The oxo-centred trinuclear complex [Fe3O(O2CPh)(6)(py)(3)]ClO4. py and its fully deuteriated analogue have been synthesized. X-Ray crystallography at T=233 K shows that the complex has threefold symmetry, space group P6(3)/m. Incoherent inelastic neutron scattering spectra at T=1.5 K however show the presence of two inequivalent sets of molecules, one a static "isosceles" coupled system, with two J values for the three metal-metal interactions, the other a dynamic system, with rapid pseudorotation between equivalent isosceles geometries. Combining infrared and neutron scattering data, the distortion of the cluster has been estimated.

Item Type:	Article
Faculty \ School:	Faculty of Science > School of Chemistry (former - to 2024)
UEA Research Groups:	Faculty of Science > Research Groups > Physical and Analytical Chemistry (former - to 2017)
Depositing User:	Rachel Smith
Date Deposited:	09 May 2011 12:28
Last Modified:	24 Sep 2024 10:25
URI:	https://ueaeprints.uea.ac.uk/id/eprint/29780
DOI:	10.1039/B008121N

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