title: 1-(Prop-2-yn-yl)-1H-benzimidazol-2(3H)-one.
abstract: The benzimidazolone part of the title mol-ecule, C10H8N2O, is almost planar [r.m.s. deviation = 0.014 (1) Å] and the NCH2C CH group forms a dihedral angle of 67.95 (6)° with its best plane. In the crystal, mol-ecules form inversion dimers via pairs of N-H⋯O hydrogen bonds. C-H⋯O inter-actions connect the dimers, forming a two-dimensional polymeric network parallel to (100).
authors.affiliation: Laboratoire de Chimie Organique Appliquée, Université Sidi Mohamed Ben Abdallah, Faculté des Sciences et Techniques, Route d'immouzzer, BP 2202 Fès, Morocco.
authors.forename: Younès
authors.initials: Y
authors.lastname: Ouzidan
authors.forename: Youssef
authors.initials: Y
authors.lastname: Kandri Rodi
authors.forename: Fouad
authors.initials: F
authors.lastname: Ouazzani Chahdi
authors.forename: El Mokhtar
authors.initials: el M
authors.lastname: Essassi
authors.forename: Mohamed
authors.initials: M
authors.lastname: Saadi
authors.forename: Lahcen
authors.initials: L
authors.lastname: El Ammari