Synthesis and characterization of the azido-bound five-coordinate high-spin iron(II) “picket fence” porphyrin complex

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• 作者：Ibtissem Hachem ; Mohamed Salah Belkhiria ; Michel Giorgi ; Charles E. Schulz ; Habib Nasri
• 关键词：Iron(II) porphyrin ; Azido complex ; X-ray diffraction ; UV– ; Visible ; Mö ; ssbauer spectroscopy
• 刊名：Polyhedron
• 出版年：2009
• 出版时间：1 April 2009
• 年：2009
• 卷：28
• 期：5
• 页码：954-958
• 全文大小：312 K

文摘

An Fe(II)-azido five-coordinate picket fence porphyrin complex with the formula [Na(2,2,2-crypt)][Fe^II(TpivPP)(N₃)] · 3C₆H₅Cl (TpivPP = α,α,α,α-tetrakis(o-pivalamidophenyl)porphinato, known as a picket fence porphyrin, and 2,2,2-crypt is the cryptand-222) has been synthesized and characterized. The synthesis utilizes cryptand-222 to solubilize sodium azide in the preparation procedure. The UV–Vis and IR spectroscopic data are consistent with an azido ferrous porphyrinate. The X-ray structural analysis and the Mössbauer results indicate that the ion complex [Fe^II(TpivPP)(N₃)]⁻ is high-spin and has the (d_xy)²(d_xz)¹(d_yz)¹(d_z²)¹(d_x²-y²)¹ ground state electronic configuration.