Crystal structure of 2-(2,3-di­meth­oxy­naphthalen-1-yl)-3-hy­droxy-6-meth­oxy-4H-chromen-4-one

[摘要] In the title compound, C22H18O6, the dimeth­oxy-substituted naphthalene ring system is twisted relative to the 4H-chromenon skeleton by 88.96 (3)°. The two meth­oxy substituents are tilted from the naphthalene ring system by 1.4 (4) and 113.0 (2)°, respectively. An intra­molecular O—H⋯O hydrogen bond closes an S(5) ring motif. In the crystal, pairs of O—H⋯O hydrogen bonds form inversion dimers with R22(10) loops and C—H⋯O inter­actions connect the dimers into [010] chains.

[学科分类] 数学（综合）

[关键词] CRYSTAL STRUCTURE;FLAVONOL;HYDROGEN BONDING;FLUORESCENCE