Answers are grounded in this paper and cite their sources.
The barrier to internal rotation in a series of p ‐substituted nitrosobenzenes has been determined by means of variable temperature 13 C NMR. Substituent (X) effects on the barrier are similar to those observed for acetophenones and benzaldehydes. In addition, dimerization of the nitrosobenzenes was observed at low temperature for X = CH 3 , CI and H. The barrier height is discussed in terms of contributions from resonance effects.
No takes yet. Share an insight, caveat, or question.
Cox et al. (1979) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: