Acta Cryst. (2010). E66, o694  [ doi:10.1107/S1600536810002667 ]

Methyl 7-chloro-2-ethylsulfanyl-6-fluoro-4-oxo-4H-thiochromene-3-carboxylate

Y. Li, T. Xiao, D. Liu and G. Yu

Abstract: In the title compound, C₁₃H₁₀ClFO₃S₂, 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 ethylsulfanyl group is almost coplanar with the two rings [dihedral angle = 6.4 (2)°], while the carboxylate group is almost perpendicular to it [dihedral angle = 72.4 (2)°]. In the crystal structure, intermolecular C-HO and C-HF hydrogen bonds link the molecules in a stacked arrangement along the a axis.

Online 27 February 2010

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