Antiaromatic compounds

{
  "id": "MLC-T-CHM-000660",
  "term": "Antiaromatic compounds",
  "field": "Chemistry",
  "definition": "Cyclic, planar, fully conjugated molecules that possess 4n pi electrons, where n is an integer. Unlike aromatic compounds, these systems are destabilized by cyclic delocalization of electrons. Cyclobutadiene is a classic example of an antiaromatic compound, exhibiting high reactivity and often existing only at low temperatures.",
  "subject": "Organic and Biomolecular Chemistry",
  "see_also": [
    "aromatic"
  ],
  "references": [
    "PAC, 1995, 67, 1307. 'Glossary of class names of organic compounds and reactivity intermediates based on structure (IUPAC Recommendations 1995)' on page 1318 (https://doi.org/10.1351/pac199567081307)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/antiaromatic-compounds/"
}