7-Nitro-5,10,15,20-tetraphenylporphyrin Dichloromethane Solvate

Abstract

The title compound shows significant conformational distortion in the vicinity of the [beta]-nitro group. This is attributed to steric interaction between a meso-phenyl and the [beta]-nitro group. The overall degree of conformation distortion is moderate, the average deviation of the 24 macrocycle atoms from their least-squares plane being 0.08 ?. The largest displacements (0.33 ? from the plane of the four pyrrole nitrogen atoms) were found for the Cb-positions of the nitrated pyrrole ring.