Cumulative double bonds

{
  "id": "MLC-T-CHM-002774",
  "term": "Cumulative double bonds",
  "field": "Chemistry",
  "definition": "A structural arrangement in an organic molecule where two or more double bonds are directly adjacent to each other, sharing a common carbon atom. This results in a system where the pi bonds are perpendicular to each other. The simplest example is allene, which contains two cumulative double bonds.",
  "subject": "Organic and Biomolecular Chemistry",
  "references": [
    "Blue Book, p. 20 (https://www.acdlabs.com/iupac/nomenclature/)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/cumulative-double-bonds/"
}