(IUCr) Crystallography Journals Online

[Contents scheme]

Acta Cryst. (2006). E62, o4350-o4352 [ doi:10.1107/S1600536806035574 ]

(E)-7-[(3-Chlorocinnamoyl)oxy]-4-methylcoumarin

S.-P. Yang, L.-J. Han, D.-Q. Wang and H.-T. Xia

Abstract: In the title compound {systematic name: 4-methyl-2-oxo-2H-1-benzopyran-7-yl 3-(3-chlorophenyl)prop-2-enoate}, C₁₉H₁₃ClO₄, the molecules have an E configuration and the dihedral angle between the coumarin unit and the benzene ring of cinnamoyloxy is 49.0 (1)°. The molecules are linked by C-HO and C-HCl hydrogen bonds into a [101] ribbon of alternating R₂²(14) rings. The molecules are linked by weak intermolecular C-HO interactions into a C₂²(12) [001] chain and a C₂²(14) [ $\\overline{2}$ 01] chain. The combination of the [101] ribbons, the [001] chains and the [ $\\overline{2}$ 01] chains results in the formation of a three-dimensional network structure.

Online 8 September 2006