Abstract
We report deuteron quadrupole coupling constants in solids CDCl3, CD2Cl2, CD2ClCD2Cl, CD3CCl3, and CD3CCl2CD3. At 77°K these are 167.6 ± 0.8, 169.6 ± 1.1, 171.7 ± 0.8, 174.3 ± 1.6, and 174.7 ± 1.9 kHz, respectively, assuming an axial quadrupole interaction. We also report here a coupling constant of 149.3 ± 0.5 kHz for D in DCl at 77°K, in agreement with the data of Genin, O'Reilly, Peterson, and Tsang. Deuteron pure quadrupole spectra were observed by a pulse double-resonance technique suggested by Hahn and co-workers, in which the halogen serves as indicator nucleus. Interpretation of the results in terms of the electronic structure is briefly discussed.
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