title: (2E)-2-(4-Meth-oxy-benzyl-idene)-2,3-di-hydro-1H-inden-1-one.
abstract: In the title compound, C(17)H(14)O(2), the indan-1-one system is almost planar (r.m.s. deviation = 0.007 Å) and the benzene ring is twisted out of its plane by 8.15 (6)°. The conformation about the C=C double bond [1.348 (2) Å] is E. Helical supra-molecular chains along [010] feature in the crystal packing; these are sustained by C-H⋯O hydrogen bonds and π-π inter-actions between translationally related indan-1-one systems [centroid-centroid distance = 3.7970 (10) Å].
authors.forename: Abdullah M
authors.initials: AM
authors.lastname: Asiri
authors.forename: Hassan M
authors.initials: HM
authors.lastname: Faidallah
authors.forename: Khulud F
authors.initials: KF
authors.lastname: Al-Nemari
authors.forename: Seik Weng
authors.initials: SW
authors.lastname: Ng
authors.forename: Edward R T
authors.initials: ER
authors.lastname: Tiekink