Carbenes

{
  "id": "MLC-T-CHM-001622",
  "term": "Carbenes",
  "field": "Chemistry",
  "definition": "Neutral compounds containing a divalent carbon atom that has six valence electrons, two of which are non-bonding. These highly reactive species act as intermediates in chemical reactions, including insertions into C-H bonds and additions to double bonds to form cyclopropanes. The simplest carbene is methylene (:CH2), which exists in either a singlet or a triplet electronic state with different geometries and reactivities.",
  "subject": "Organic and Biomolecular Chemistry",
  "see_also": [
    "acyl carbenes",
    "hydrocarbons",
    "imidoyl carbenes",
    "parent hydride",
    "singlet state",
    "systematic name",
    "triplet state",
    "vinyl carbenes"
  ],
  "references": [
    "PAC, 1995, 67, 1307. 'Glossary of class names of organic compounds and reactivity intermediates based on structure (IUPAC Recommendations 1995)' on page 1324 (https://doi.org/10.1351/pac199567081307)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/carbenes/"
}