Twisted intramolecular charge transfer

{
  "id": "MLC-T-CHM-012370",
  "term": "Twisted intramolecular charge transfer",
  "field": "Chemistry",
  "definition": "A photophysical process in molecules containing electron donor and acceptor groups connected by a single bond that allows torsional motion. Following photoexcitation, an electron is transferred from the donor to the acceptor, and the molecule relaxes by twisting around the connecting bond to form a new, stabilized excited state. This twisted intramolecular charge transfer (TICT) state is characterized by nearly perpendicular donor and acceptor planes and a large dipole moment, and its formation is highly dependent on solvent polarity.",
  "subject": "Organic and Biomolecular Chemistry",
  "see_also": [
    "electron donor",
    "intramolecular charge transfer"
  ],
  "references": [
    "PAC, 2007, 79, 293. 'Glossary of terms used in photochemistry, 3rd edition (IUPAC Recommendations 2006)' on page 436 (https://doi.org/10.1351/pac200779030293)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/twisted-intramolecular-charge-transfer/"
}