title: 3-Methyl-3,4-dihydro-9H-carbazol-1(2H)-one.
abstract: In the title mol-ecule, C(13)H(13)NO, the dihedral angle between the benzene ring and the fused pyrrole ring is 2.03 (5)°. The methyl group at the 3-position has an equatorial orientation. The cyclo-hexene ring adopts an envelope conformation. Three C atoms of the cyclo-hexene ring, with their attached H atoms, and all atoms of the methyl group are disordered over two positions, the site-occupancy factors being 0.883 (2) and 0.117 (2). In the crystal structure, mol-ecules are stabilized by inter-molecular N-H⋯O hydrogen bonds. A C-H⋯π inter-action, involving the benzene ring, is also found.
authors.forename: A
authors.initials: A
authors.lastname: Thomas Gunaseelan
authors.forename: K
authors.initials: K
authors.lastname: Prabakaran
authors.forename: K J
authors.initials: KJ
authors.lastname: Rajendra Prasad
authors.forename: A
authors.initials: A
authors.lastname: Thiruvalluvar
authors.forename: R J
authors.initials: RJ
authors.lastname: Butcher