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Crystal Structures and EPR Spectra of Cu2+-Doped Magnesium(II) and Cadmium(II) Methoxyacetates

Citation

Hitchman, MA and Hockless, DCR and Skelton, BW and Stratemeier, H and White, AH, Crystal Structures and EPR Spectra of Cu2+-Doped Magnesium(II) and Cadmium(II) Methoxyacetates, Zeitschrift fuer Anorganische und Allegemeine Chemie, 633, (11-12) pp. 2004-2008. ISSN 0044-2313 (2007) [Refereed Article]

DOI: doi:10.1002/zaac.200700288

Abstract

Magnesium methoxyacetate crystallizes from aqueous solution as a dihydrate, isomorphous with its nickel(II) and copper(II) counterparts, the six-coordinate metal atoms being disposed on crystallographic inversion centres in space group P21/n. The cadmium complex is anhydrous, the six-coordinate metal atoms being linked into a two-dimensional polymer parallel to the ab plane in space group P21/c by bridging coordination through carboxylate oxygen atoms. The powder EPR spectra of traces of Cu2+ doped into the magnesium(II) and cadium(II) compounds show slight temperature dependences, with the higher two g-values converging as the temperature is raised from ∼77 K to 290 K. This is analysed in terms of an equilibrium between complexes having similar geometries, but with the long and intermediate bond directions interchanged. The behaviour is in contrast to that of the pure copper(II) complex, where the thermal properties appear to be influenced by cooperative interactions. © 2007 WILEY-VCH Verlag GmbH & Co. KGaA.

Item Details

Item Type:Refereed Article
Research Division:Chemical Sciences
Research Group:Inorganic Chemistry
Research Field:Transition Metal Chemistry
Objective Division:Expanding Knowledge
Objective Group:Expanding Knowledge
Objective Field:Expanding Knowledge in the Chemical Sciences
Author:Hitchman, MA (Dr Michael Hitchman)
Author:Stratemeier, H (Dr Horst Stratemeier)
ID Code:51139
Year Published:2007
Web of Science® Times Cited:1
Deposited By:Chemistry
Deposited On:2007-08-01
Last Modified:2008-09-30
Downloads:0

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