Exchange repulsion

{
  "id": "MLC-T-CHM-004170",
  "term": "Exchange repulsion",
  "field": "Chemistry",
  "definition": "A quantum mechanical effect arising from the Pauli exclusion principle, which prevents electrons with the same spin from occupying the same spatial region. This repulsion contributes to the overall repulsive forces between atoms or molecules when their electron clouds overlap. It is a short-range interaction that becomes dominant at very close distances between interacting species.",
  "subject": "Organic and Biomolecular Chemistry",
  "see_also": [
    "Coulomb repulsion",
    "hartree"
  ],
  "references": [
    "PAC, 1999, 71, 1919. 'Glossary of terms used in theoretical organic chemistry' on page 1938 (https://doi.org/10.1351/pac199971101919)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/exchange-repulsion/"
}