Coordination number

{
  "id": "MLC-T-CHM-002557",
  "term": "Coordination number",
  "field": "Chemistry",
  "definition": "The number of atoms, ions, or molecules directly bonded to a central atom or ion in a complex or crystal lattice. It indicates the number of donor atoms from ligands that are attached to the central metal atom. Common coordination numbers include 2, 4, and 6.",
  "subject": "Organic and Biomolecular Chemistry",
  "see_also": [
    "chemical species",
    "coordination",
    "central atom",
    "coordination entity",
    "ligands"
  ],
  "references": [
    "PAC, 1994, 66, 1077. 'Glossary of terms used in physical organic chemistry (IUPAC Recommendations 1994)' on page 1100 (https://doi.org/10.1351/pac199466051077)",
    "Red Book, 3rd ed., p. 146"
  ],
  "url": "https://mlchart.com/terminology/chemistry/coordination-number/"
}