TICT state

https://doi.org/10.1351/goldbook.T06372
The acronym derives from Twisted Internal Charge Transfer state, proposed to be responsible for strongly @S06027@-shifted @F02453@ from certain aromatics, particularly in a polar medium.
See:
twisted internal charge transfer
Source:
PAC, 1996, 68, 2223. (Glossary of terms used in photochemistry (IUPAC Recommendations 1996)) on page 2280 [Terms] [Paper]