Induced Nuclear-Spin-Symmetry Species Conversion in Solid Hexamethylbenzene Using Level Crossing

E. P. Jones; M. Bloom

doi:10.1103/PhysRevLett.28.1239

Induced Nuclear-Spin-Symmetry Species Conversion in Solid Hexamethylbenzene Using Level Crossing

E. P. Jones

M. Bloom^*

Department of Physics and Astronomy, The University of Toledo, Toledo, Ohio 43606

Laboratoire de Physique Solides, Université Paris-Sud, 91-Orsay, France, and Laboratoire de Spectroscopie Hertzienne, Ecole Normale Supérieure, Paris 5e, France

^*Visiting Scientist on Canada-France Scientific Exchange Program, 1971-1972. Permanent address: Department of Physics, University of British Columbia, Vancouver 8, B. C., Canada.

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Phys. Rev. Lett. 28, 1239 – Published 8 May, 1972

DOI: https://doi.org/10.1103/PhysRevLett.28.1239

Abstract

We demonstrate the existence of nuclear spin states associated with the protons of the C $H_{3}$ groups in solid hexamethylbenzene, using a level-crossing experiment to observe conversion of the associated $A$ and $E$ nuclear spin species. The experiment also determines the torsional ground-state splitting of the C $H_{3}$ group to be 11.0±2.5 MHz.

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Induced Nuclear-Spin-Symmetry Species Conversion in Solid Hexamethylbenzene Using Level Crossing

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Induced Nuclear-Spin-Symmetry Species Conversion in Solid Hexamethylbenzene Using Level Crossing

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