Methyl tunnelling in dibromomesitylene
β Scribed by J. Meinnel; B. Hennion; M. Mani; B. Wyncke; C.J. Carlile
- Publisher
- Elsevier Science
- Year
- 1995
- Tongue
- English
- Weight
- 213 KB
- Volume
- 213-214
- Category
- Article
- ISSN
- 0921-4526
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π SIMILAR VOLUMES
Inelastic neutron scattering has been used to study the tunnelling of methyl groups belonging to several guest molecules (toluene, p-xylene, 7-picoline) incarcerated in a host calixarene matrix. In all the cases investigated, the low temperature neutron spectra show a number of bands which may be in
The frequencies are reported of tunnelling rotation of the terminal methyl groups of n-alkyl chains in polycrystalline samples of ten members of the series n-alkane-2-one. The dependence of the frequency on chain length exhibits a sharp change. Alkyl chains longer than seven carbon atoms have methyl