title: 4-(Prop-2-yn-1-yl-oxy)benzaldehyde.
abstract: In the title mol-ecule, C10H8O2, all non-H atoms are essentailly coplanar (r.m.s. deviation = 0.0192 Å), indicating an effective conjugation of the carbonyl group, the benzene ring and the lone pair of the propyn-yloxy O atom. In the crystal, π-π stacking inter-actions [centroid-centroid distance = 3.5585 (15) Å] connect mol-ecules into inversion dimers which are linked by Csp-H⋯O=C hydrogen bonds, forming a ladder-like structure.
authors.affiliation: Department of Material Science and Chemistry, Wakayama University, Sakaedani, Wakayama 640-8510, Japan.
authors.forename: Ikue
authors.initials: I
authors.lastname: Doi
authors.forename: Tsunehisa
authors.initials: T
authors.lastname: Okuno