crystal structure of bis(2-methyl-1h-imidazole-κn3)(meso-tetra-p-tolylporphyrinato-κ4n)iron(iii) perchlorate tetrahydrofuran sesquisolvate

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ID: 155306
2016
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Abstract
In the title compound, [Fe(C48H36N4)(C4H6N2)2]ClO4·1.5C4H8O, the iron(III) metal is coordinated in a distorted octahedral geometry by four pyrrole N atoms of the porphyrin ligand in the equatorial plane and two N atoms of 2-methylimidazole ligands in the axial sites. The complex has a highly ruffled porphyrin core with mean absolute core-atom displacements Ca, Cb, Cm and Cav of 0.25 (5), 0.17 (12), 0.432 (16) and 0.25 (13) Å, respectively. One of the four phenyl groups of the porphyrin is disordered over two sets of sites with refined occupancy ratio of 0.718 (7):0.282 (7). The mean Fe—Np (Np is a porphyrin N atom) bond length [1.975 (9) Å] indicates the low-spin state of the iron atom. The two 2-methylimidazole ligands are nearly perpendicular and form a dihedral angle of 86.93 (10)°. The dihedral angles between the 2-methylimidazole ligands and the closest Fe—Np vector are 38.04 (9) and 35.00 (7)°. In the crystal, the complex cations interact with the perchlorate anions through N—H...O hydrogen bonds, forming chains running parallel to [110].
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Authors ;Wenyan Sun;Jianfeng Li
Journal Disability and rehabilitation
Year 2016
DOI
10.1107/S2056989016010562
URL
http://scripts.iucr.org/cgi-bin/paper?S2056989016010562
Keywords
crystal structure iron(iii)

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