https://doi.org/10.1351/goldbook.C01000
A process in which under the influence of a suitable
driving force
(e.g. provided by photoexcitation
) electronic charge moves without changing the difference in local charges between donor and acceptor sites. Electron transfer
reversing the charges in a system composed of a neutral donor and a cationic acceptor or of a neutral acceptor and an anionic donor provide prominent examples.