Attachment

{
  "id": "MLC-T-CHM-000925",
  "term": "Attachment",
  "field": "Chemistry",
  "definition": "A transformation in which a substrate is converted into a larger molecular entity by forming exactly one two-center bond to another entity, with no other change in the substrate's connectivity. An example is carbon monoxide combining with a carbenium ion R+ to give the acylium ion RCO+. It differs from addition, in which a reagent forms two new bonds to an unsaturated substrate.",
  "subject": "Organic and Biomolecular Chemistry",
  "see_also": [
    "adduct",
    "bond",
    "carbenium ion",
    "cation",
    "colligation",
    "connectivity",
    "cycloaddition",
    "electron attachment",
    "molecular entity",
    "substrate",
    "transformation"
  ],
  "references": [
    "PAC, 1994, 66, 1077. 'Glossary of terms used in physical organic chemistry (IUPAC Recommendations 1994)' on page 1086 (https://doi.org/10.1351/pac199466051077)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/attachment/"
}