Auxochrome

{
  "id": "MLC-T-CHM-001015",
  "term": "Auxochrome",
  "field": "Chemistry",
  "definition": "A functional group that does not absorb light in the visible region itself but, when attached to a chromophore, modifies the ability of the chromophore to absorb light. These groups often contain lone pairs of electrons that can interact with the pi system of the chromophore. Common examples include hydroxyl (-OH) and amino (-NH2) groups.",
  "subject": "Organic and Biomolecular Chemistry",
  "see_also": [
    "chromophore",
    "hyperchromic effect"
  ],
  "references": [
    "PAC, 1996, 68, 2223. 'Glossary of terms used in photochemistry (IUPAC Recommendations 1996)' on page 2229 (https://doi.org/10.1351/pac199668122223)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/auxochrome/"
}