Abstract
The preparation and characterization of the bis(1-methylimidazole)( meso-tetraphenylporphinato)iron(III) perchlorate complex is described. The molecular structure has been determined by an X-ray crystal structure determination. The complex has two axial imidazole ligands that are nearly coplanar and close to eclipsing an FeN p bond. A rhombic distortion in the equatorial bonds is seen; the set that is approximately perpendicular to the imidazole ligand planes has an average value of 1.973(6) Å while the other set has an average value of 1.991(4) Å. The axial FeN(Im) bond distances average to 1.974 Å. The complex has a rhombic EPR spectrum and the derived crystal field parameters are reported. Crystal data: a=10.730(1), b=21.207(4), c=21.231(4) Å, and β= 96.82(1)°, monoclinic, space group P2 1/ n, V=4796.8 Å 3, Z=4, R 1=0.066, R 2=0.074 based on 6429 observed data.
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