Structure of Nuclear Quadrupole Resonance Line II. Solid Bromine

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Abstract
Broad resonance lines of Br 79 and Br 81 in a single crystal of bromine have been studied. If the theory of indirect spin-spin coupling is applied, ten components are expected for each lines even when asymmetry of the field gradient tensor is neglected. The observed derivative curves of the lines could not be resolved into more than three lines. Provided that the each components have a finite line width a rough agreement was obtained with the interaction constant of 3 kc. This value is resonable if the s -character of Br–Br bond is 18%. The ratio between overall line width of Br 79 and Br 81 accorded approximately with the ratio of the square of nuclear magnetic moment.

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