Measurement of deuterium quadrupole coupling constants of CD3groups by1H−{2H} N.M.R. studies of nematic solutions

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Abstract
Analytical expressions have been derived for the transition frequencies and intensities of a partially oriented group of deuterium nuclei with symmetry of the permutation group. Using d 3-acetone, CD3COCH3, dissolved in a nematic solvent, as an example, it is shown how 1H−{2H} double resonance experiments can be used to determine the relative signs of dipolar and quadrupolar interactions. The magnitude of the quadrupole coupling constant of the 2H nuclei in CD3COCH3 is determined.