ICT

https://doi.org/10.1351/goldbook.IT07397
Acronym for intramolecular charge transfer.
See also: planar intramolecular charge transfer, twisted intramolecular charge transfer
Source:
PAC, 2007, 79, 293. 'Glossary of terms used in photochemistry, 3rd edition (IUPAC Recommendations 2006)' on page 354 (https://doi.org/10.1351/pac200779030293)