title: 3-(2-Chloro-3-hy-droxy-4-meth-oxy-phen-yl)-1-(4,5-dimeth-oxy-2-methyl-phen-yl)prop-2-en-1-one.
abstract: The title compound, C(19)H(19)ClO(5), is a chloro derivative of a biologically significant chalcone family. The mean plane of the two substituted benzene rings are twisted by 55.33 (8)° with respect to each other. An intra-molecular C-H⋯Cl hydrogen bond generates an S(5) graph-set motif. In the crystal, a bifurcated O-H⋯(O,O) hydrogen bond leads to an R(1) (2)(5) graph-set motif and to the formation of zigzag chains propagating along the c-axis direction. A weak π-π inter-action involving the methyl-phenyl rings [centroid-centroid distance = 3.8185 (10) Å] and C-H⋯π inter-actions also occur.
authors.affiliation: Department of Physics, Sardar Patel University, Vallabh Vidya Nagar, Gujarat 388 120,  India.
authors.forename: U H
authors.initials: UH
authors.lastname: Patel
authors.forename: S A
authors.initials: SA
authors.lastname: Gandhi
authors.forename: V M
authors.initials: VM
authors.lastname: Barot
authors.forename: M C
authors.initials: MC
authors.lastname: Patel