Radiationless transition

{
  "id": "MLC-T-CHM-009837",
  "term": "Radiationless transition",
  "field": "Chemistry",
  "definition": "A process in which an excited electronic state of an atom or molecule decays to a lower energy state without the emission of a photon. The excess energy is converted into vibrational or translational energy within the molecule or transferred to the surrounding medium as heat. Examples include internal conversion and intersystem crossing.",
  "subject": "Organic and Biomolecular Chemistry",
  "see_also": [
    "radiative transition"
  ],
  "references": [
    "Orange Book, 2nd ed., p. 185 (https://media.iupac.org/publications/analytical_compendium/)",
    "PAC, 1996, 68, 2223. 'Glossary of terms used in photochemistry (IUPAC Recommendations 1996)' on page 2269 (https://doi.org/10.1351/pac199668122223)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/radiationless-transition/"
}