title: Crystal structure of 4-(2-azido-phen-yl)-5-benzoyl-2-(1H-indol-3-yl)-1H-pyrrole-3-carbo-nitrile.
abstract: In the title compound, C26H16N6O, the dihedral angles between the central pyrrole ring and the pendant indole ring system (r.m.s. deviation = 0.027 Å) and the azide-bearing benzene ring are 37.56 (8) and 51.62 (11)°, respectively. The azide group is almost coplanar with its attached benzene ring [C-C-N-N = 3.8 (3)°]. The benzoyl benzene ring is disordered over two orientations twisted with respect to each other by 9.29 (8)° in a 0.514 (2):0.486 (2) ratio. In the crystal, inversion dimers linked by pairs of Np-H⋯O (p = pyrrole) hydrogen bonds generate R 2 (2)(10) loops. A second inversion dimer arises from a pair of Ni-H⋯Nc (i = indole and c = cyanide) hydrogen bonds, which generates an R 2 (2)(16) loop. Together, the hydrogen bonds lead to [011] chains in the crystal.
authors.affiliation: Department of Physics, Presidency College (Autonomous), Chennai 600 005, India.
authors.forename: G
authors.initials: G
authors.lastname: Vimala
authors.affiliation: Organic Chemistry Division, Central Leather Research Institute (CSIR), Adyar, Chennai 600 020, India.
authors.forename: J Kamal
authors.initials: JK
authors.lastname: Raja
authors.affiliation: Department of Physics, Presidency College (Autonomous), Chennai 600 005, India.
authors.forename: Y Amina
authors.initials: YA
authors.lastname: Naaz
authors.affiliation: Organic Chemistry Division, Central Leather Research Institute (CSIR), Adyar, Chennai 600 020, India.
authors.forename: P T
authors.initials: PT
authors.lastname: Preumal
authors.affiliation: Department of Physics, Presidency College (Autonomous), Chennai 600 005, India.
authors.forename: A
authors.initials: A
authors.lastname: SubbiahPandi
keywords: crystal structure; hydrogen bonding; indole derivatives; pyrrole-3-carbo­nitrile