Crystal Structure of 3-Hydroxy-3′,4′-Methylenedioxy Flavone-6-Carboxylic Acid Dimethylformamide Solvate
作者:Hui-Liang Wen、Yun-Hua Chen、Chong-Bo Liu、Dan-Dan Chen、Xiao-Bo Hu
DOI:10.1007/s10870-010-9727-5
日期:2010.9
The optically pure 3-hydroxy-3′,4′-methylenedioxy flavone-6-carboxylic acid was obtained through the chalcone route. The structure of 3-hydroxy-3′,4′-methylenedioxy flavone-6-carboxylic acid was first elucidated by single crystal X-ray analysis: triclinic, space group, triclinic (P-1) with a = 8.1379(13) Å, b = 8.9831(14) Å, c = 13.198(2) Å, α = 88.413(2)°, β = 74.908(2)°, γ = 72.987(2)°. V = 889.5(2) Å3, Z = 2. The structure was solved by direct methods and refined to a final R = 0.0413 for 1630 reflections with I > 2σ(I). The crystal structure is stabilized by O–H···O and C–H···O hydrogen bondings and π–π stacking interactions. The titled compound, 3-hydroxy-3′,4′-methylenedioxy flavone-6-carboxylic acid dimethylformamide solvate, was linked to one-dimensional molecular ribbons via intermolecular O–H···O and C–H···O hydrogen bondings.
通过查尔酮法获得了光学纯的3-羟基-3′,4′-亚甲基二氧基黄酮-6-羧酸。3-羟基-3′,4′-亚甲基二氧基黄酮-6-羧酸的结构首先通过单晶X射线分析阐明:三斜晶系,空间群,三斜晶系(P-1),a = 8.1379(13) Å,b = 8.9831(14) Å,c = 13.198(2) Å,α = 88.413(2)°,β = 74.908(2)°,γ = 72.987(2)°。V = 889.5(2) Å3,Z = 2。该结构通过直接方法求解,并精炼为最终R = 0.0413,1630次反射,I > 2σ(I)。晶体结构由O-H·O和C-H·O氢键以及π-π堆积相互作用稳定。标题化合物3