Allyl cation

{
  "id": "MLC-T-CHM-000440",
  "term": "Allyl cation",
  "field": "Chemistry",
  "definition": "An even-electron cation of the general form R2C=CR-C+R2, whose positive charge is delocalized over the two terminal carbons by resonance, the parent being C3H5+. Its stability is comparable to that of a secondary carbocation and far above that of a localized primary one. In mass spectrometry the C3H5+ ion is a common fragment observed at a mass-to-charge ratio of 41.",
  "subject": "Analytical Chemistry",
  "references": [
    "PAC, 2013, 85, 1515. 'Definitions of terms relating to mass spectrometry (IUPAC Recommendations 2013)' on page 1521 (https://doi.org/10.1351/PAC-REC-06-04-06)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/allyl-cation/"
}