title: Methyl 7-chloro-2-ethyl-sulfanyl-6-fluoro-4-oxo-4H-thio-chromene-3-carboxyl-ate.
abstract: In the title compound, C(13)H(10)ClFO(3)S(2), the two-ring system is essentially planar, the mean plane of the benzene ring being inclined at 6.0 (2)° to the plane of the remaining four atoms. The ethyl-sulfanyl group is almost coplanar with the two rings [dihedral angle = 6.4 (2)°], while the carboxyl-ate group is almost perpendicular to it [dihedral angle = 72.4 (2)°]. In the crystal structure, inter-molecular C-H⋯O and C-H⋯F hydrogen bonds link the mol-ecules in a stacked arrangement along the a axis.
authors.affiliation: Department of Applied Chemistry, College of Science, Nanjing University of Technology, Nanjing 210009, People's Republic of China.
authors.forename: Yang
authors.initials: Y
authors.lastname: Li
authors.forename: Tao
authors.initials: T
authors.lastname: Xiao
authors.forename: Dong-Liang
authors.initials: DL
authors.lastname: Liu
authors.forename: Guang-Yan
authors.initials: GY
authors.lastname: Yu