Hemochromes

{
  "id": "MLC-T-CHM-005194",
  "term": "Hemochromes",
  "field": "Chemistry",
  "definition": "Low-spin compounds of heme in which the fifth and sixth coordination positions on the central iron atom are occupied by nitrogen atoms from two non-porphyrin ligands. These ligands are typically strong-field ligands, such as those from histidine residues in proteins or from added bases like pyridine. The resulting complex exhibits a characteristic absorption spectrum, with a sharp Soret band and distinct alpha and beta bands in the visible region.",
  "subject": "Organic and Biomolecular Chemistry",
  "see_also": [
    "amines",
    "hemes",
    "ligands",
    "porphyrins"
  ],
  "references": [
    "PAC, 1995, 67, 1307. 'Glossary of class names of organic compounds and reactivity intermediates based on structure (IUPAC Recommendations 1995)' on page 1339 (https://doi.org/10.1351/pac199567081307)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/hemochromes/"
}