title: Crystal structure of 6-chloro-5-(2-chloro-eth-yl)-3-(propan-2-yl-idene)indolin-2-one.
abstract: The title compound, C13H13Cl2NO, has a 3-(propan-2-yl-idene)indolin-2-one core with a Cl atom and a chloro-ethyl substituent attached to the aromatic ring. Two atoms of the aromatic ring and the chloro-ethyl substituent atoms are disordered over two sets of sites with a refined occupancy ratio of 0.826 (3):0.174 (3). In the crystal, mol-ecules are linked by pairs of N-H⋯O hydrogen bonds, forming inversion dimers with an R 2 (2)(8) ring motif.
authors.affiliation: Department of Physics, Yuvaraja's College (Constituent College), University of Mysore, Mysore 570 005, Karnataka, India.
authors.forename: K R
authors.initials: KR
authors.lastname: Roopashree
authors.affiliation: Department of Studies in Chemistry, Karnataka University, Dharwad 580 003, Karnataka, India.
authors.forename: Gangadhar Y
authors.initials: GY
authors.lastname: Meti
authors.affiliation: Department of Studies in Chemistry, Karnataka University, Dharwad 580 003, Karnataka, India.
authors.forename: Ravindra R
authors.initials: RR
authors.lastname: Kamble
authors.affiliation: Department of Physics, Yuvaraja's College (Constituent College), University of Mysore, Mysore 570 005, Karnataka, India.
authors.forename: H C
authors.initials: HC
authors.lastname: Devarajegowda
keywords: N—H⋯O hydrogen bonding; crystal structure; disorder; hyaluronidase; indolin-2-one; inversion dimers; propan-2-yl­idene