Aryl Cations: Searching for and Assigning Structures to + Isomers

Article abstract of DOI:10.1002/oms.1210261121

The energetics and mass spectral characteristics of a number of ⁺ ions have been examined.No compelling evidence could be found to show that the 2-cyclopropaphenyl cation was produced by loss of bromine from the ionized 2-bromo derivative.It was proposed that the ethynylcyclopentadienyl cation may be the global minimum on the + hypersurface.