Aryl cations

{
  "id": "MLC-T-CHM-000820",
  "term": "Aryl cations",
  "field": "Chemistry",
  "definition": "A carbocation obtained formally when a ring carbon of an arene loses a hydride ion, the phenyl cation C6H5+ being the simplest example. The vacant orbital is an sp2-type orbital in the plane of the ring, orthogonal to the aromatic pi system, which is why aryl cations are far less stable than alkyl or benzyl cations. They are generated, for example, from aryldiazonium salts and are extremely reactive.",
  "subject": "Organic and Biomolecular Chemistry",
  "see_also": [
    "carbocation",
    "arenes",
    "arenium ions",
    "hydron"
  ],
  "references": [
    "PAC, 1995, 67, 1307. 'Glossary of class names of organic compounds and reactivity intermediates based on structure (IUPAC Recommendations 1995)' on page 1320 (https://doi.org/10.1351/pac199567081307)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/aryl-cations/"
}