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The Strathprints institutional repository is a digital archive of University of Strathclyde research outputs.

Strathprints serves world leading Open Access research by the University of Strathclyde, including research by the Strathclyde Institute of Pharmacy and Biomedical Sciences (SIPBS), where research centres such as the Industrial Biotechnology Innovation Centre (IBioIC), the Cancer Research UK Formulation Unit, SeaBioTech and the Centre for Biophotonics are based.

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Temperature dependent solid-state proton migration in dimethylurea–oxalic acid complexes

Jones, Andrew O. F. and Lemee-Cailleau, Marie-Helene and Martins, David M. S. and McIntyre, Garry J. and Oswald, Iain D. H. and Pulham, Colin R. and Spanswick, Christopher K. and Thomas, Lynne H. and Wilson, Chick C. (2012) Temperature dependent solid-state proton migration in dimethylurea–oxalic acid complexes. Physical Chemistry Chemical Physics, 14 (38). pp. 13273-13283. ISSN 1463-9076

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Abstract

The phenomenon of solid-state proton migration within molecular complexes containing short hydrogen bonds is investigated in two dimethylurea-oxalic acid complexes. Extensive characterisation by both X-ray and neutron diffraction shows that proton migration along the hydrogen bond can be induced in these complexes as a function of temperature. This emphasises the subtle features of the hydrogen bond potential well in such short hydrogen bonded complexes, both intrinsically and in the effect of the local crystalline environment. Based on these findings, the synthesis and analysis of a series of solid-state molecular complexes is shown to be a potential route to designing materials with tuneable proton migration effects.