2,6-Diphenyl-4-(2-thienyl)-1,4-dihydropyridine-3,5-dicarbonitrile
نویسندگان
چکیده
The asymmetric unit of the title compound, C(23)H(15)N(3)S, contains two crystallographically independent mol-ecules. The pyridine rings adopt envelope conformations. The thio-phene rings are oriented at dihedral angles of 77.97 (4)/53.53 (4) and 78.44 (4)/57.11 (4)° with respect to the phenyl rings, while the dihedral angles between the phenyl rings are 48.51 (4) and 44.49 (4)°. In the crystal structure, inter-molecular N-H⋯N hydrogen bonds link the mol-ecules into chains along the c axis. The S, C and H atoms of one of the thio-phene rings are disordered over two orientations, with occupancy ratios of 0.314 (15):0.686 (15).
منابع مشابه
Hydrogen-bonded supramolecular structures of three related 4-(5-nitro-2-furyl)-1,4-dihydropyridines.
In ethyl 5-cyano-2,6-dimethyl-4-(5-nitro-2-furyl)-1,4-dihydropyridine-3-carboxylate, C15H15N3O5, the molecules are linked into chains by a single N-H...O hydrogen bond. The molecules in diethyl 2,6-dimethyl-4-(5-nitro-2-furyl)-1,4-dihydropyridine-3,5-dicarboxylate, C17H20N2O7, are linked by a combination of one N-H...O hydrogen bond and two C-H...O hydrogen bonds into sheets built from equal nu...
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