Characterization of a Six-Coordinate Ferrous High-Spin Heme with Both Intramolecular Axial Carboxylic Acid and Pyridine

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• 作者：Ismail Hijazi ; Thierry Roisnel ; Pascale Even-Hernandez ; Eric Furet ; Jean-Franois Halet ; Olivier Cador ; Bernard Boitrel
• 刊名：Journal of the American Chemical Society
• 出版年：2010
• 出版时间：August 11, 2010
• 年：2010
• 卷：132
• 期：31
• 页码：10652-10653
• 全文大小：158K
• 年卷期：v.132,no.31(August 11, 2010)
• ISSN：1520-5126

文摘

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.