title: 1-(3-Amino-1H-inden-2-yl)ethanone.
abstract: The title compound, C(11)H(11)NO, was synthesized by the reaction of 2-(bromo-meth-yl)benzonitrile and acetyl-acetone in the presence of KOH. In the crystal packing, mol-ecules are linked by inter-molecular N-H⋯O hydrogen bonds into chains running parallel to the b axis. Centrosymmetrically-related chains inter-act further through weak C-H⋯π inter-actions.
authors.affiliation: Ordered Matter Science Research Center, College of Chemistry and Chemical Engineering, Southeast University, Nanjing 210096, People's Republic of China.
authors.forename: Dong-Yue
authors.initials: DY
authors.lastname: Hu
authors.forename: Zhi-Rong
authors.initials: ZR
authors.lastname: Qu