The effect of solvent on the barrier to internal rotation in p-substituted nitrosoanilines

Abstract

The solvent dependence of the barrier to internal rotation about the Ar-NO bond in N,N-dimethyl-p-nitrosoaniline and N,N-diethyl-p- nitrosoaniline has been investigated by a complete N.M.R. line-shape method. Activation parameters are reported for the nitrosoanilines in solution in acetone[D₆], chloroform[D], and toluene[D₈]. The effect of solvent has been found to be small.