3-(2-Chloro-6-fluoro­phen­yl)-1-(2-thien­yl)prop-2-en-1-one

The title chalcone derivative, C(13)H(8)ClFOS, crystallized as an inversion twin with two independent mol­ecules in the asymmetric unit. The thio­phene rings in both mol­ecules are disordered over two sites: the ratios of occupancies for the major and minor components in the two mol­ecules are 0.820 (2):0.180 (2) and 0.853 (2):0.147 (2). The dihedral angles between the major and minor components of the thio­phene and benzene rings are 1.13 (18) and 2.2 (6)°, respectively, in one mol­ecule, with corresponding values 6.09 (17) and 1.3 (6)° in the other. Weak intra­molecular C—H⋯O and C—H⋯F inter­actions involving the prop-2-en-1-one group generate an S(5)S(5) ring motif, whereas a weak intra­molecular C—H⋯Cl contact generates an S(6) ring motif. In the crystal structure, mol­ecules of both the major and minor components are linked into infinite one-dimensional chains along the b axis. The crystal structure is stabilized by weak C—H⋯O, C—H⋯F, C—H⋯Cl and C—H⋯π inter­actions.