Low-spin state

{
  "id": "MLC-T-CHM-006797",
  "term": "Low-spin state",
  "field": "Chemistry",
  "definition": "A configuration of electrons in a transition metal complex where the electrons occupy the lowest energy orbitals first, pairing up before occupying higher energy orbitals. This arrangement results in the minimum number of unpaired electrons and a smaller total spin angular momentum. It occurs when the ligand field splitting energy is large, overcoming electron-electron repulsion.",
  "subject": "Organic and Biomolecular Chemistry",
  "see_also": [
    "coulomb",
    "exchange repulsion",
    "ground state",
    "low-spin"
  ],
  "references": [
    "PAC, 1999, 71, 1919. 'Glossary of terms used in theoretical organic chemistry' on page 1950 (https://doi.org/10.1351/pac199971101919)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/low-spin-state/"
}