title: 2,2-Bis(1H-indol-3-yl)indolin-3-one.
abstract: In the title mol-ecule, C(24)H(17)N(3)O, the mean plane of the indolone ring forms dihedral angles of 112.0 (1) and 103.1 (1)° with the planes of the two indole rings. The dihedral angle between the mean planes of the two indole rings is 63.5 (1)°. In the crystal structure, mol-ecules are linked via inter-molecular N-H⋯O hydrogen bonds, forming a two-dimensional network parallel to the ab plane.
authors.forename: Zhao-Hao
authors.initials: ZH
authors.lastname: Li
authors.forename: Jing
authors.initials: J
authors.lastname: Xu
authors.forename: Wen-Liang
authors.initials: WL
authors.lastname: Wu
authors.forename: Wei-Ping
authors.initials: WP
authors.lastname: Su