Sulfur base ligation to iron(II) and cobalt(II) porphyrins
- 1 November 1979
- journal article
- research article
- Published by Proceedings of the National Academy of Sciences in Proceedings of the National Academy of Sciences
- Vol. 76 (11), 5418-5420
- https://doi.org/10.1073/pnas.76.11.5418
Abstract
Equilibrium constants for the binding of S bases to Co(II)porphyrins were measured in toluene solution by a spectrophotometric method. The order of decreasing binding strength of S ligands to Co(II)porphyrins was mercaptide ions .mchgt. thioethers > mercaptans. A similar stability order of these S ligands should exist towards Fe(II)porphyrins, but formation constants could be obtained only for the mercaptide ions.This publication has 14 references indexed in Scilit:
- Imidazole, the ligand trans to mercaptide in ferric cytochrome P-450. An EPR study of proteins and model compounds.Journal of Biological Chemistry, 1977
- Carbon monoxide binding to pentacoordinate mercaptide-heme complexes: kinetic study on models for cytochrome P-450.Proceedings of the National Academy of Sciences, 1976
- Oxygen binding to mercaptide-heme complexes. Models for reduced cytochrome P-450Journal of the American Chemical Society, 1976
- Ferrous porphyrin-mercaptide complexes. Models for reduced cytochrome P-450Journal of the American Chemical Society, 1975
- A Model Compound Study of the CO-Adduct of Cytochrome P-450Journal of Biological Chemistry, 1974
- Reactions of monomeric cobalt-oxygen complexes. I. Thermodynamics of reaction of molecular oxygen with five- and six-coordinate amine complexes of a cobalt porphyrinJournal of the American Chemical Society, 1973
- The Structure and History of an Ancient ProteinScientific American, 1972
- Ferricytochrome c. I. General features of the horse and bonito proteins at 2.8 A resolution.1971
- SPIN-STATE CHANGES IN CYTOCHROME P-450 cam ON BINDING OF SPECIFIC SUBSTRATESProceedings of the National Academy of Sciences, 1970
- Cytochrome cAdvances in protein chemistry, 1966