Abstract:The title compound, C13H6Br2O4, derived from xanthone, a fundamental structural framework of active ingredients in many medicinal plants, and was synthesized by bromination of 1,3-dihydroxyxanthen-9-one with N-bromosuccinimide. The molecular conformation is essentially planar, the dihedral angle between the benzene rings being 1.1 (4)°. This conformation is favorable for the formation of an intramolecular O—H⋯O hydrogen bond between a hydroxy group and the xanthone carbonyl group. In the crystal, molecul… Show more
C18H15BrO4, monoclinic, P21/c (no. 14), a = 14.616(2) Å, b = 14.657(2) Å, c = 7.3864(12) Å, β = 103.627(7)°, V = 1537.8(4) Å3, Z = 4, R
gt(F) = 0.0315, wR
ref(F
2) = 0.0935, T = 100 K.
C18H15BrO4, monoclinic, P21/c (no. 14), a = 14.616(2) Å, b = 14.657(2) Å, c = 7.3864(12) Å, β = 103.627(7)°, V = 1537.8(4) Å3, Z = 4, R
gt(F) = 0.0315, wR
ref(F
2) = 0.0935, T = 100 K.
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