Excimer

{
  "id": "MLC-T-CHM-004174",
  "term": "Excimer",
  "field": "Chemistry",
  "definition": "A transient dimeric species formed between an excited state molecule and a ground state molecule of the same type. It is stable only in the excited state and dissociates upon returning to the ground state. Excimers typically exhibit a broad, structureless emission band at a longer wavelength than the monomer fluorescence.",
  "subject": "Organic and Biomolecular Chemistry",
  "see_also": [
    "exciplex",
    "ground state",
    "molecular entity"
  ],
  "references": [
    "PAC, 1994, 66, 1077. 'Glossary of terms used in physical organic chemistry (IUPAC Recommendations 1994)' on page 1114 (https://doi.org/10.1351/pac199466051077)",
    "PAC, 1996, 68, 2223. 'Glossary of terms used in photochemistry (IUPAC Recommendations 1996)' on page 2240 (https://doi.org/10.1351/pac199668122223)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/excimer/"
}