title: Crystal structure of (E)-3-(5-bromo-2-hydroxy-phen-yl)acryl-aldehyde.
abstract: The title compound, C9H7BrO2, displays a trans configuration with respect to the C=C double bond and is essentially planar [maximum deviation from the least-squares plane through all non-H atoms = 0.056 (4) Å]. The vinyl-aldehyde group adopts an extended conformation wih a C-C-C-C torsion angle of 179.7 (4)°. In the crystal, mol-ecules are linked by classical O-H⋯O and weak C-H⋯O hydrogen bonds into a three-dimensional supra-molecular network.
authors.affiliation: Department of Chemistry, Kyonggi University, 154-42, Gwanggyosan-ro, Yeongtong-gu, Suwon 443-760, Republic of Korea.
authors.forename: Sung-Gon
authors.initials: SG
authors.lastname: Kim
keywords: crystal structure; hydrogen bonding; three-dimensional supra­molecular network 2-hy­droxy­cinnamaldehydes; trans configuration; vinyl­aldehyde group