title: Polymorph of 4-(carbazol-9-yl)benzo-nitrile.
abstract: The asymmetric unit of the title compound, C(19)H(12)N(2), contains two independent mol-ecules with a similar structure. In the two mol-ecules, the dihedral angles between the carbazole ring system and the benzene ring are 47.9 (5) and 45.4 (4)°, similar to the value of 47.89 (6)° found in the previously reported structure [Saha & Samanta (1999 ▶). Acta Cryst. C55, 1299-1300]. In the crystal, there is a weak C-H⋯N hydrogen bond between the two independent mol-ecules.
authors.affiliation: Department of Chemistry, Yanbian University, Yanji Jilin 133002,  People's Republic of China.
authors.forename: Yu-Zhong
authors.initials: YZ
authors.lastname: Xie
authors.forename: Jing-Yi
authors.initials: JY
authors.lastname: Jin
authors.forename: Xiao-Chun
authors.initials: XC
authors.lastname: Qu