Re, Si

{
  "id": "MLC-T-CHM-013478",
  "term": "Re, Si",
  "field": "Chemistry",
  "definition": "Descriptors for the two faces of a trigonal atom, such as the carbon of a carbonyl group, whose three ligands all differ. Viewed from a face, the Re face shows the ligands in clockwise order of decreasing Cahn-Ingold-Prelog priority, and the Si face shows them counterclockwise. The two faces are enantiotopic in an achiral molecule and diastereotopic in a chiral one.",
  "subject": "Organic and Biomolecular Chemistry",
  "see_also": [
    "CIP priority",
    "enantiotopic",
    "ligands",
    "prochirality",
    "stereoheterotopic"
  ],
  "references": [
    "PAC, 1996, 68, 2193. 'Basic terminology of stereochemistry (IUPAC Recommendations 1996)' on page 2216 (https://doi.org/10.1351/pac199668122193)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/re-si/"
}