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Issue 38, 2012
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Temperature dependent solid-state proton migration in dimethylurea–oxalic acid complexes

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Abstract

The phenomenon of solid-state proton migration within molecular complexes containing short hydrogen bonds is investigated in two dimethylureaoxalic 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.

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

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Publication details

The article was received on 30 May 2012, accepted on 03 Aug 2012 and first published on 15 Aug 2012


Article type: Paper
DOI: 10.1039/C2CP41782K
Phys. Chem. Chem. Phys., 2012,14, 13273-13283

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    Temperature dependent solid-state proton migration in dimethylureaoxalic acid complexes

    A. O. F. Jones, M. Lemée-Cailleau, D. M. S. Martins, G. J. McIntyre, I. D. H. Oswald, C. R. Pulham, C. K. Spanswick, L. H. Thomas and C. C. Wilson, Phys. Chem. Chem. Phys., 2012, 14, 13273
    DOI: 10.1039/C2CP41782K

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