Internal conversion

{
  "id": "MLC-T-CHM-005962",
  "term": "Internal conversion",
  "field": "Chemistry",
  "definition": "A radiationless transition between electronic states of the same spin multiplicity within a molecule. This process involves the conversion of electronic energy into vibrational energy, leading to relaxation to a lower electronic state. It is a very fast process, typically occurring on the femtosecond to picosecond timescale.",
  "subject": "Organic and Biomolecular Chemistry",
  "see_also": [
    "deactivation",
    "dissociation",
    "electronic state",
    "radiationless transition",
    "unstable"
  ],
  "references": [
    "PAC, 1996, 68, 2223. 'Glossary of terms used in photochemistry (IUPAC Recommendations 1996)' on page 2248 (https://doi.org/10.1351/pac199668122223)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/internal-conversion/"
}