(E)-1-(2-Thienyl)-3-(2,4,5-trimethoxy-phenyl)prop-2-en-1-one

Abstract

In the title mol-ecule, C16H16O4S, the enone fragment, thio-phene ring and benzene ring are individually essentially planar. The thio-phene ring is disordered over two sites, corresponding to a rotation of approximately 180°about the single C - C bond to which it is attached. The approximate ratio of occupancies for the major and minor components is 0.872 (2):0.128 (2). The major component of the thio-phene ring and the benzene ring are twisted from each other by 13.92 (19)°. An intra-molecular C - H⋯O hydrogen bond generates an S(5)S(5) ring motif. The crystal structure is stabilized by inter-molecular C - H⋯O hydrogen-bonding inter-actions. In addition, a π-π stacking inter-action, with a centroid-centroid distance of 3.852 (2) Å, and short S⋯O [2.9378 (12) Å] and O⋯O [2.5811 (16) Å] contacts are observed.