Conventional ion
From Mass Spec Terms
A radical cation or anion in which the charge site and the spin charge (unpaired electron) can be both formally located in the same atom or group of atoms, as opposed to the spatially separate electronic configuration of distonic ions. The radical cation of methanol, CH3OH+., in which the charge and spin sites are formally located at the O atom is an example of a conventional ion, whereas .CH2-OH2+ is a distonic ion.
