Crystal structure of bis(1-methyl-1H-imidazole-κN3)(5,10,15,20-tetraphenylporphyrinato-κ4N)iron(II)–1-methyl-1H-imidazole (1/2)

Abstract

The title compound, [Fe(C44H28N4)(C4H6N2)2]·2C4H6N2, is a six-coordinate FeII–porphyrinate complex with the metal located on a center of inversion and coordinated by two axial 1-methylimidazole ligands; the complex crystallizes as a 1-methylimidazole disolvate. The 1-methylimidazole group bonded to the FeII atom [occupancy ratio 0.789 (4):0.211 (4)] and the unbound 1-methylimidazole molecule [0.519 (4):0.481 (4)] were disordered. The average Fe—N(porphyrinate) bond length is 1.998 (3) Å and the axial Fe—N(imidazole) bond length is 1.9970 (12) Å. In the crystal, molecules are linked into a three-molecule aggregate by two weak C—H...N interactions.

Keywords

• crystal structure
• model porphyrins
• FeII complex