Bulletin of the Chemical Society of Japan
Online ISSN : 1348-0634
Print ISSN : 0009-2673
ISSN-L : 0009-2673
Proton Magnetic Resonance Study of Solid Hexamethylethane
Tsutomu Koide
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1967 Volume 40 Issue 9 Pages 2026-2029


The molecular motion of solid hexamethylethane was studied by the proton magnetic resonance method from the liquid nitrogen temperature to 20°C. In the temperature range between about −160°C and −120°C, the methyl group rotates about its own axis, and also the molecule rotates about the molecular axis as a whole. Above −120°C, the molecule rotates almost freely. On the other hand, the molecular motion of hexamethyldisilane in the high temperature phase has been explained in terms of the facts that the molecule rotates freely and also has a degree of translational freedom. The difference in the molecular motion between hexamethylethane and hexamethyldisilane is caused mainly by the difference in the molecular interaction.

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