Topological analysis of the electron localization function applied to the study of the [1,3] sigmatropic shift of fluorine in 3-fluorpropene

Topological analysis of electron localization function (ELF) using electron density for the investigation of sigmatropic shift of fluorine was presented. The ionic nature of the transition states was supported by the absence of fluorine and allyl fragment connecting polisynaptic basin. The role C-H bonding interactions in delocalization of electronic charge involved in fluorine migration was also presented.