Final Published Version
The Journal of Chemical Physics
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.
Beckmann, Peter A., Hania A. Al‐Hallaq, Anne M. Fry, Amy L. Plofker, Brian A. Roe, and Jessica A. Weiss. 1994. "Solid state proton spin relaxation and methyl and t-butyl reorientation." The Journal of Chemical Physics 100: 752.