The title compound 5,10,15,20-tetrakis(4-chlorophenyl)porphyrin was synthesized and structurally characterized by X-ray single-crystal diffraction method. Crystal data: triclinic, space group P, Z=1, C50H32Cl4N4, Mr=830.60, a=6.4316(13), b=11.322(2), c=13.833(3) , α =91.44(3), β=91.06(2), γ=92.67(3)°, V=1005.7(3)3 , Dc=1.371 g/cm3 , μ(MoKα)=0.34 mm-1 , F(000)=428, R=0.0563 and wR=0.0867 for 2712 observed reflections with I > 2σ(I). X-ray analysis reveals the phenyl rings and the pyrrole rings are not in the same plane. The dihedral angles between adjacent phenyl rings and pyrrole rings are 66.1 and 66.8°, respectively.
