The aim of this paper is to investigate whether the methyl group of the adsorbed methoxy intermediate on industrial grade alumina catalysts undergoes rotational tunnelling on the wavenumber energy scale. The data show that this is clearly the case for a fraction of the methyl groups and potentially allows the subtle intermolecular interactions between adsorbed species and catalyst to be probed through the exponential dependence of the tunnel frequency on the rotational potential.
S. F. Parker, V. G. Sakai, D. Lennon, A. Jackson, M. R. Johnson and U. A. Jayasooriya, Chem. Commun., 2016, 52, 366 DOI: 10.1039/C5CC08223D
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