N.m.r. measurements of T1 and T1ρ have been made on the three isomers of xylene over the temperature range from 10 K to their melting points. From these results the activation energies for methyl group rotation and rotation of the whole molecules have been derived. Solid m-xylene was found to exist in two forms, one of which is assumed to be crystalline and the other glassy.
A. M. I. Ahmed, R. G. Eades, T. A. Jones and J. P. Llewellyn, J. Chem. Soc., Faraday Trans. 2, 1972, 68, 1316 DOI: 10.1039/F29726801316
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