charge-transfer (CT) transition
An electronic transition in which a large fraction of an electronic charge is transferred from one region of a molecular entity, called the @E01988@, to another, called the @E01976@ (@I03130@ CT) or from one molecular entity to another (@I03098@ CT). Typical for donor-acceptor complexes or multichromophoric molecular entities. In some cases the charge-transfer absorption band may be obscured by the absorption of the partners.
PAC, 1996, 68, 2223. (Glossary of terms used in photochemistry (IUPAC Recommendations 1996)) on page 2232 [Terms] [Paper]