Radiationless deactivation

{
  "id": "MLC-T-CHM-009836",
  "term": "Radiationless deactivation",
  "field": "Chemistry",
  "definition": "The process by which an excited electronic state of an atom or molecule loses its excitation energy without the emission of a photon. This energy is typically converted into vibrational or rotational energy within the molecule or transferred to the surrounding environment as heat. Examples include internal conversion and intersystem crossing.",
  "synonyms": [
    "radiationless decay"
  ],
  "subject": "Organic and Biomolecular Chemistry",
  "see_also": [
    "excitation energy"
  ],
  "references": [
    "PAC, 2007, 79, 293. 'Glossary of terms used in photochemistry, 3rd edition (IUPAC Recommendations 2006)' on page 410 (https://doi.org/10.1351/pac200779030293)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/radiationless-deactivation/"
}