title: Crystal structure of meso-tetra-kis-(4-nitro-phen-yl)porphyrin nitro-benzene disolvate.
abstract: The porphyrin core of the title centrosymmetric compound, C44H26N8O8·2C6H5NO2, is approximately planar, the maximum deviation being 0.069 (3) Å. The planes of the benzene rings of the nitro-phenyl substituents are almost perpendicular to the porphyrin mean plane, making dihedral angles of 73.89 (9) and 89.24 (9)°. The two pyrrole ring H atoms are equally disordered over the four pyrrole ring N atoms. In the crystal, weak C-H⋯O and C-H⋯N hydrogen bonds link the porphyrin mol-ecules into a three-dimensional supra-molecular network. The nitro-benzene solvent mol-ecules are linked by weak C-H⋯O hydrogen bonds into supra-molecular chains propagating along the a-axis direction.
authors.affiliation: National Taras Shevchenko University, Department of Chemistry, Volodymyrska str. 64, 01601 Kyiv, Ukraine.
authors.forename: Maksym
authors.initials: M
authors.lastname: Seredyuk
authors.affiliation: Faculty of Chemistry, University of Wroclaw, 14, F. Joliot-Curie Str., 50383, Wroclaw, Poland.
authors.forename: Elzbieta
authors.initials: E
authors.lastname: Gumienna-Kontecka
authors.affiliation: Faculty of Chemistry, University of Wroclaw, 14, F. Joliot-Curie Str., 50383, Wroclaw, Poland.
authors.forename: Anna
authors.initials: A
authors.lastname: Brzuszkiewicz
authors.affiliation: National Taras Shevchenko University, Department of Chemistry, Volodymyrska str. 64, 01601 Kyiv, Ukraine.
authors.forename: Turganbay S
authors.initials: TS
authors.lastname: Iskenderov
authors.affiliation: O.O. Bohomolets National Medical University, Department of General Chemistry, Shevchenko blvd 13, 01004 Kiev, Ukraine.
authors.forename: Valentina A
authors.initials: VA
authors.lastname: Kalibabchuk
keywords: crystal structure; hydrogen bonding; porphyrins; supra­molecular chains