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A theoretical study is presented of the effects of solvent molecules on directly-bonded 13C-H nuclear spin-spin coupling constants (1 J CH) of acrylonitrile, dichloromethane, chloroform, difluoromethane and trifluoromethane. The solvent-solute interaction is estimated using Klopman's solvaton theory. Calculations of 1 J CH's are performed by the finite perturbation theory in the INDO approximation for acrylonitrile, difluoromethane and trifluoromethane, and in the CNDO/2 approximation for dichloromethane and chloroform. Calculated results are compared with the observed solvent effects.
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Kondo et al. (1979) studied this question.
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