intervalence charge transfer

https://doi.org/10.1351/goldbook.I03125
@E02011@ (thermal or photoinduced) between two metal sites differing only in @O04365@. Quite often such @E02011@ reverses the @O04362@ states of the sites. The term is frequently extended to the case of @M03869@ between non-equivalent metal centres.
Source:
PAC, 1996, 68, 2223. (Glossary of terms used in photochemistry (IUPAC Recommendations 1996)) on page 2248 [Terms] [Paper]