3,5-二羟基-7,4'-二甲氧基黄酮的晶体结构

Chemical Research(2016)

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Abstract
从黑沙蒿植物中分离得到3,5-二羟基-7,4'-二甲氧基黄酮,其结构通过核磁共振氢谱、碳谱、X射线单晶衍射进行了表征.该化合物属于三斜晶系,P-1空间群,a=0.479 0(2) nm,b=1.434 5(7) nm,c=2.124 9(10) nm,V=1.429 1(12) nm3,Z=4,Mr=314.28,Dc=1.461 g/cm3,F(000)=656,μ=0.112 mm-1,S=1.088,R1=0.097 2,wR2=0.277 7.X射线单晶结构分析表明,两个黄酮分子通过分子间氢键以头-尾相连的方式形成一个共平面的二聚体.
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Key words
5-dihydroxy-7,4'-dimethoxyflavone,Artemisia Ordosica Kraschen,crystal structure
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