Multiplicity

{
  "id": "MLC-T-CHM-007676",
  "term": "Multiplicity",
  "field": "Chemistry",
  "definition": "A quantum mechanical property of an electronic state, defined as 2S + 1, where S is the total spin angular momentum of the electrons. It indicates the number of possible spin orientations for a given electronic configuration. Singlet states have a multiplicity of 1, while triplet states have a multiplicity of 3.",
  "synonyms": [
    "spin multiplicity"
  ],
  "subject": "Organic and Biomolecular Chemistry",
  "see_also": [
    "angular momentum",
    "doublet state"
  ],
  "references": [
    "PAC, 1996, 68, 2223. 'Glossary of terms used in photochemistry (IUPAC Recommendations 1996)' on page 2255 (https://doi.org/10.1351/pac199668122223)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/multiplicity/"
}