title: 1-Isopropenyl-1H-1,3-benzimidazol-2(3H)-one.
abstract: In the title N-substituted benzimidazol-2-one, C(10)H(10)N(2)O, the fused ring system is almost planar (r.m.s. deviation = 0.01 Å) and aligned at 57.9 (1)° with respect to the propenyl fragment. In the crystal, adjacent mol-ecules are linked by pairs of N-H⋯O hydrogen bonds into inversion dimers.
authors.forename: Asmaa
authors.initials: A
authors.lastname: Saber
authors.forename: Hafid
authors.initials: H
authors.lastname: Zouihri
authors.forename: El Mokhtar
authors.initials: el M
authors.lastname: Essassi
authors.forename: Seik Weng
authors.initials: SW
authors.lastname: Ng