Abstract
The deuteron quadrupole coupling constants (DQCC) of methyl bromide- d 3 and bromoform- d were studied as a function of the liquid-crystal solvent by using 2H NMR spectroscopy and observing natural-abundance carbon-13 satellites. Furthermore, the solvent dependence of the DCD bond angle in methyl bromide is reported. The variations of these parameters are discussed in terms of the correlation between molecular vibration and reorientational motion. The DQCCs for methyl bromide- d 3 and bromoform- d are predicted to be 177 ± 1 kHz and 184 ± 1 kHz, respectively.
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