Complex

{
  "id": "MLC-T-CHM-002323",
  "term": "Complex",
  "field": "Chemistry",
  "definition": "An assembly of two or more chemical species, or portions of a single large species, held together by forces other than full covalent bonds. The constituent components can be atoms, ions, or molecules, and they retain a substantial degree of their individual chemical identity within the assembly. The term is general and also encompasses coordination entities, which are formed by a central atom bonded to a surrounding array of ligands.",
  "subject": "Organic and Biomolecular Chemistry",
  "see_also": [
    "activated complex",
    "adduct",
    "association",
    "bond",
    "charge-transfer complex",
    "chemical species",
    "coordination entity",
    "encounter complex",
    "inclusion compound",
    "molecular entity",
    "transition state",
    "π-adduct",
    "σ-adduct"
  ],
  "references": [
    "PAC, 1994, 66, 1077. 'Glossary of terms used in physical organic chemistry (IUPAC Recommendations 1994)' on page 1098 (https://doi.org/10.1351/pac199466051077)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/complex/"
}