title: 4-Hy-droxy-3-[(E)-3-phenyl-prop-2-eno-yl]-2H-chromen-2-one.
abstract: In the title mol-ecule, C(18)H(12)O(4), the phenyl ring is twisted by 23.2 (1)° from the mean plane of the chromene system. In the crystal, weak inter-molecular C-H⋯O hydrogen bonds link mol-ecules into zigzag chains extending in the [010] direction. An intra-molecular O-H⋯O hydrogen bond is also present.
authors.affiliation: Unité de chimie des Matériaux, ISSBAT, Université de Tunis-ElManar, 9 Avenue Dr Zoheir SAFI, 1006 Tunis,  Tunisia.
authors.forename: Afef
authors.initials: A
authors.lastname: Ghouili
authors.forename: Rached
authors.initials: R
authors.lastname: Ben Hassen
references.citation: Acta Crystallogr A. 2008 Jan;64(Pt 1):112-22
references.pmid: 18156677
references.citation: Acta Crystallogr Sect E Struct Rep Online. 2009 Jun 20;65(Pt 7):o1652-3
references.pmid: 21582916
references.citation: Acta Crystallogr Sect E Struct Rep Online. 2010 Oct 31;66(Pt 11):o3022-3
references.pmid: 21589179