Anisotropic Spin -Lattice Relaxation of Deuterated Hexamethylbenzene
نویسنده
چکیده
The anisotropic spin-lattice relaxation of deuterated hexamethy lbenzene (HMB-d,,) was measured at -36 and 70°C. The anisotropy is due to the anisotropic sixfold reorientation of the molecule about its hexad axis, and a model is presented to explain quantitatively the anisotropy, considering only single-particle relaxation. The temperature dependence of T, was measured, and the activation energy and correlation time for the sixfold reorientation were determined.
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