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The title complex, [Fe(C 44 H 28 N 4 )(C 5 H 8 N 2 ) 2 ]·C 4 H 8 O, possesses inversion symmetry with the iron(II) atom located on a center of symmetry. The metal atom is coordinated in a symmetric octa-hedral geometry by four pyrrole N atoms of the porphyrin ligand in the equatorial plane and two N atoms of 1-ethyl-imidazole ligands in the axial sites; the complex crystallizes with a tetra-hydro-furan solvent mol-ecule. The average Fe-N p (N p is a porphyrin N atom) bond length is 1.995 (3) Å and the axial Fe-N Im (N Im is an imidazole N atom) bond length is 1.994 (2) Å. The two 1-ethyl-imidazole ligands are mutually parallel. The dihedral angle between the 1-ethyl-imidazole plane and the plane of the closest Fe-N p vector is 24.5°. In the crystal, the only significant inter-molecular inter-actions present are C-H⋯π inter-actions.

acta crystallographica. section e, crystallographic communications

Crystal structure of bis(1-ethyl-1H-imidazole-κN 3)(5,10,15,20-tetraphenylporphyrinato-κ4 N)iron(II) tetrahydrofuran monosolvate