Abstract
It is shown that the anisotropic coupling constants previously determined from the 13C satellite proton n.m.r. spectrum of a nematic solution of 1,3,5-trichlorobenzene are consistent with a satisfactory structure provided that allowance is made for harmonic vibrational motion. The 13C satellite 19F spectra of 1,3,5-trichlorotrifluorobenzene have been analysed, and in this case vibrational averaging of the dipolar couplings has a negligible effect on the derived structure. There are, however, small but significant contributions to the total anisotropic couplings from the anisotropic components of the indirect, electron-coupled interactions.
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Schedule a callMore From: Journal of the Chemical Society, Faraday Transactions 2
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