Molecules of the title macrocycle, C36H22N4O4, are located on an inversion Plastic Audio Socket Nut center.The porphyrin ring shows a wave-like conformation with adjacent pyrrole rings tilted above the porphyrin plane and the interporphyrin distance is 3.584 (3) Å.
The dihedral angles between the meso-furyl groups and the porphyrin plane are 38.87 (7) and 48.29 (7)°; these are much smaller than those observed for meso-tetraphenylporphyrin, indicating that the meso-furyl groups are more inclined towards the porphyrin plane.
The decrease in the dihedral angle is Shadow Box due to the presence of intramolecular hydroden bonding between the meso-fury O atom and the β-pyrrole CH group.Intramolecular N—H.N hydrogen bonds are also present.