Crystal structure of bis(1-ethyl-1H-imidazole-κN
3)(5,10,15,20-tetraphenylporphyrinato-κ4
N)iron(II) tetrahydrofuran monosolvate
The title complex, [Fe(C44H28N4)(C5H8N2)2]·C4H8O, possesses inversion symmetry with the iron(II) atom located on a center of symmetry. The metal atom is coordinated in a symmetric octahedral geometry by four pyrrole N atoms of the porphyrin ligand in the equatorial plane and two N atoms of 1-ethylimidazole ligands in the axial sites; the complex crystallizes with a tetrahydrofuran solvent molecule. The average Fe—Np (Np is a porphyrin N atom) bond length is 1.995 (3) Å and the axial Fe—NIm (NIm is an imidazole N atom) bond length is 1.994 (2) Å. The two 1-ethylimidazole ligands are mutually parallel. The dihedral angle between the 1-ethylimidazole plane and the plane of the closest Fe—Np vector is 24.5°. In the crystal, the only significant intermolecular interactions present are C—H...π interactions.