Article révisé par les pairs
Résumé : Müller-Pritchard (MP) type relations are used to study1JCH and1JCC coupling constants in a series of unsubstituted as well as in heterosubstituted hydrocarbons. In the case of the coupling constant between two atoms connected by a multiple bond, a generalised MP-type relation is derived. © 1980 Springer-Verlag.