title: Characterization of a six-coordinate ferrous high-spin heme with both intramolecular axial carboxylic acid and pyridine.
abstract: Synthesis of a bis-strapped porphyrin with a pyridyl residue on one side and a malonic acid on the other side gives after iron(II) insertion a six-coordinate complex in which both apical groups are the two axial ligands of the iron atom. Unexpectedly, this six-coordinate iron(II) complex proves to be high-spin, likely due to some stabilization of the axial metal-ligand antibonding orbitals.
authors.affiliation: UMR CNRS 6226 Université de Rennes1, Sciences Chimiques de Rennes, Campus de Beaulieu, 35042 Rennes Cedex, France.
authors.forename: Ismail
authors.initials: I
authors.lastname: Hijazi
authors.forename: Thierry
authors.initials: T
authors.lastname: Roisnel
authors.forename: Pascale
authors.initials: P
authors.lastname: Even-Hernandez
authors.forename: Eric
authors.initials: E
authors.lastname: Furet
authors.forename: Jean-François
authors.initials: JF
authors.lastname: Halet
authors.forename: Olivier
authors.initials: O
authors.lastname: Cador
authors.forename: Bernard
authors.initials: B
authors.lastname: Boitrel
mesh_terms: D002264:Carboxylic Acids / Q000737:chemistry*; D018360:Crystallography, X-Ray; D005296:Ferrous Compounds / Q000737:chemistry*; D006418:Heme / Q000737:chemistry*; D008958:Models, Molecular; D015394:Molecular Structure; D011725:Pyridines / Q000737:chemistry*
chemical_list: D002264:Carboxylic Acids; D005296:Ferrous Compounds; D011725:Pyridines; D006418:Heme; C023666:pyridine