Cryptand

{
  "id": "MLC-T-CHM-002747",
  "term": "Cryptand",
  "field": "Chemistry",
  "definition": "A synthetic bicyclic or polycyclic multidentate ligand that completely encapsulates a guest ion, typically a metal cation, within its three-dimensional cavity. These compounds exhibit high selectivity and strong binding affinities due to the preorganization of their binding sites. The resulting complex is known as a cryptate.",
  "subject": "Organic and Biomolecular Chemistry",
  "see_also": [
    "adduct",
    "anion",
    "binding site",
    "cation",
    "covalent bond",
    "crown",
    "guest",
    "host",
    "ligands",
    "molecular entity",
    "porphyrins"
  ],
  "references": [
    "PAC, 1994, 66, 1077. 'Glossary of terms used in physical organic chemistry (IUPAC Recommendations 1994)' on page 1102 (https://doi.org/10.1351/pac199466051077)",
    "PAC, 1995, 67, 1307. 'Glossary of class names of organic compounds and reactivity intermediates based on structure (IUPAC Recommendations 1995)' on page 1329 (https://doi.org/10.1351/pac199567081307)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/cryptand/"
}