Planar chirality

{
  "id": "MLC-T-CHM-008995",
  "term": "Planar chirality",
  "field": "Chemistry",
  "definition": "A type of stereoisomerism in which handedness comes from an unsymmetrical placement of groups relative to a stereogenic plane, with no stereogenic centre required. Typical examples are (E)-cyclooctene, monosubstituted paracyclophanes and ferrocenes carrying two different substituents on one ring, where the ring prevents the arrangement flipping into its mirror image. Allenes and hindered biaryls are not planar chiral; they show axial chirality instead.",
  "synonyms": [
    "planar stereoisomerism"
  ],
  "subject": "Organic and Biomolecular Chemistry",
  "see_also": [
    "atropisomers",
    "chiral",
    "chirality",
    "chirality plane",
    "stereoisomerism"
  ],
  "references": [
    "PAC, 1996, 68, 2193. 'Basic terminology of stereochemistry (IUPAC Recommendations 1996)' on page 2213 (https://doi.org/10.1351/pac199668122193)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/planar-chirality/"
}