Term: intramolecular charge transfer (ICT)
https://doi.org/10.1351/goldbook.IT07401

Definition:
Process that changes the overall charge distribution in a molecule.

Note: For @I03130@ charge transfer in the @E02257@, several models are discussed in the literature based on the molecular structure of the final state reached upon photo-induced ICT: @PT07418@ (PICT) or @T06537@ (TICT). For example, an ICT has been proposed to be responsible for the strongly @S06031@ additional @F02453@ band in fluorescent molecules with two @F02453@ bands (@DT07365@ molecules).

Related Terms:
1) intramolecular (http://doi.org/10.1351/goldbook.I03130).
2) planar intramolecular charge transfer (http://doi.org/10.1351/goldbook.PT07418).
3) twisted intramolecular charge transfer (http://doi.org/10.1351/goldbook.T06537).
4) fluorescence (http://doi.org/10.1351/goldbook.F02453).
5) excited state (http://doi.org/10.1351/goldbook.E02257).
6) stokes-shifted (http://doi.org/10.1351/goldbook.S06031).
7) dual fluorescent (<em>of systems or molecular species</em>) (http://doi.org/10.1351/goldbook.DT07365).

Source: PAC, 2007, 79, 293. 'Glossary of terms used in photochemistry, 3rd edition (IUPAC Recommendations 2006)' on page 357 (https://doi.org/10.1351/pac200779030293)

Citation: 'intramolecular charge transfer (ICT)' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. https://doi.org/10.1351/goldbook.IT07401

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