TITLE

Solid state proton spin relaxation and methyl and t-butyl reorientation

AUTHOR(S)
Beckmann, Peter A.; Al-Hallaq, Hania A.; Fry, Anne M.; Plofker, Amy L.; Roe, Brian A.; Weiss, Jessica A.
PUB. DATE
January 1994
SOURCE
Journal of Chemical Physics;1/1/1994, Vol. 100 Issue 1, p752
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We have measured the temperature T and Larmor frequency ω/2π dependence of the proton spin-lattice relaxation rate R in solid 1-hydroxy-2,4,6-tri-butylbenzene. The data is interpreted in terms of the rotational motion of the t-butyl groups and their constituent methyl groups. Our data is much more extensive than a previous report [J. Yamauchi and C. A. McDowell, J. Chem. Phys. 75, 1051 (1981)] resulting in a revised dynamical model and considerably larger rotational barriers. Interesting thermal history effects are discussed.
ACCESSION #
7615556

 

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