title: 2-(6-Chloro-1H-indol-3-yl)acetonitrile.
abstract: In the title compound, C(10)H(7)ClN(2), the carbonitrile group is twisted away from the plane of the indole ring system [C(cy)-C(me)-C(ar)-C(ar) = -44.7 (8)°; cy = cyanide, me = methyl-ene and ar = aromatic]. In the crystal, N-H⋯N hydrogen bonds link the mol-ecules into C(7) chains propagating in [010]. Aromatic π-π stacking inter-actions [minimum centroid-centroid separation = 3.663 (3) Å] are also observed.
authors.affiliation: Key Laboratory of Urban and Architectural Heritage Conservation, (Southeast University), Ministry of Education, Nanjing 210096, People's Republic of China, and, College of Chemistry and Chemical Engineering, Southeast University, Nanjing 210096,  People's Republic of China.
authors.forename: Jin-Feng
authors.initials: JF
authors.lastname: Li
authors.forename: Yang-Hui
authors.initials: YH
authors.lastname: Luo