Electron‐impact studies—LXXIV: A survey of rearrangement processes in the ‘doubly‐charged ion’ mass spectra of aromatic compounds

The technique of Beynon2 has been used to determine the ‘doubly‐charged ion’ mass spectra of a variety of aromatic compounds which contain pronounced rearrangement peaks in their conventional mass spectra. Many, but not all, of the ‘doubly‐charged ion’ spectra contain similar rearrangement peaks to those observed in conventional spectra.