Active site

{
  "id": "MLC-T-CHM-000189",
  "term": "Active site",
  "field": "Chemistry",
  "definition": "A specific region on the surface of a catalyst, enzyme, or adsorbent where the chemical reaction or binding event takes place. This site possesses a unique geometric and electronic structure that facilitates the interaction with reactant molecules. The efficiency and selectivity of a catalyst are largely determined by the nature and accessibility of its active sites.",
  "subject": "Physical and Biophysical Chemistry",
  "see_also": [
    "adsorption"
  ],
  "references": [
    "PAC, 1976, 46, 71. 'Manual of Symbols and Terminology for Physicochemical Quantities and Units - Appendix II. Definitions, Terminology and Symbols in Colloid and Surface Chemistry. Part II: Heterogeneous Catalysis' on page 77 (https://doi.org/10.1351/pac197646010071)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/active-site/"
}