9-[4-(Azidomethyl)phenyl]-9H-carbazole-3-carbonitrile

In the title compound C20H13N5, the dihedral angle between the carbazole ring system (r.m.s. deviation = 0.027 Å) and the pendant benzene ring is 55.08 (6)°. One of the azide N atoms is disordered over two positions in a 0.65 (2):0.35 (2) ratio. In the crystal, aromatic π–π stacking is observed [minimum centroid–centroid separation = 3.6499 (13) Å] as well as inversion-dimers connected by pairs of weak C—H⋯π interactions.

In the title compound C 20 H 13 N 5 , the dihedral angle between the carbazole ring system (r.m.s. deviation = 0.027 Å ) and the pendant benzene ring is 55.08 (6) . One of the azide N atoms is disordered over two positions in a 0.65 (2):0.35 (2) ratio. In the crystal, aromaticstacking is observed [minimum centroid-centroid separation = 3.6499 (13) Å ] as well as inversion-dimers connected by pairs of weak C-HÁ Á Á interactions.
Cg3 is the centroid of the C7-C12 ring.
CR acknowledge AMET University management, India, for their kind support.
properties and are considered to be potential candidates for electronics such as colour display, organic semiconductor lasers and solar cells (Friend et al., 1999).

Refinement
In azidomethyl group one of the nitrogen atom is disordered over two position. The site occupancy factors of disordered nitrogen atoms were refined as N3 = 0.35 (2) and N3A = 0.65 (2) during anisotropic refinement. The N3A-N4 bond distance was restrained to be 1.1500 (1) Å. The atom N3A exhibited elongation of the thermal elipsoid and have been restrained (ISOR) to be more isotropic. The components of the anisotropic displacement parameters in direction of the bond N3-N4 and N4-N5, were restrained to be equal within an effective standard deviation of 0.001 using the DELU command in SHELXL (Sheldrick, 2008). H atoms were positioned geometrically and refined using riding model with C-H = 0.93 Å and U iso (H) = 1.2Ueq(C) for aromatic C-H, C-H = 0.97 Å and U iso (H) = 1.2Ueq(C) for CH2.

Figure 1
The molecular structure of (I), with 30% probability displacement ellipsoids for non-H atoms.