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The crystal structure of the title compound, [Zn(C 48 H 24 N 8 S 4 )(C 4 H 10 O)]·C 4 H 10 O, consists of discrete porphyrin complexes that are located on a twofold rotation axis. The Zn II cation is fivefold coordinated by four N atoms of the porphyrin moiety and one O atom of a diethyl ether mol-ecule in a slightly distorted square-pyramidal environment with the diethyl ether mol-ecule in the apical position. The porphyrin backbone is nearly planar with the metal cation slightly shifted out of the plane towards the coordinating diethyl ether mol-ecule. All four iso-thio-cyanato groups of the phenyl substituents at the meso -positions face the same side of the porphyrin, as is characteristic for picket fence porphyrins. In the crystal structure, the discrete porphyrin complexes are arranged in such a way that cavities are formed in which additional diethyl ether solvate mol-ecules are located around a twofold rotation axis. The O atom of the solvent mol-ecule is not positioned exactly on the twofold rotation axis, thus making the whole mol-ecule equally disordered over two symmetry-related positions.

acta crystallographica. section e, crystallographic communications

Crystal structure of (diethyl ether-κO)[5,10,15,20-tetrakis(2-isothiocyanatophenyl)porphyrinato-κ4 N]zinc diethyl ether solvate