Reaction
sequence (thermal or photoinduced) between neutral molecular or atomic entities in which long-range
electron transfer is followed by a considerable reduction of the distance between donor and acceptor
sites as a result of the electrostatic attraction in the
ion pair created.
Source:
PAC, 1996, 68, 2223
(Glossary of terms used in photochemistry (IUPAC Recommendations 1996))
on page 2245