| Molecular and Crystal Structure of 7—Hydroxy—6,8—dimethoxyl—coumarin |
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| 引用本文： | 李超,罗保生,孙天恩.Molecular and Crystal Structure of 7—Hydroxy—6,8—dimethoxyl—coumarin[J].结构化学,2001,20(2):100-103. |
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| 作者姓名： | 李超 罗保生 孙天恩 |
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| 作者单位： | Analysis and Testing Centre，School of Chemical and Environmental Science Wuhan University，Wuhan 430072，China |
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| 基金项目： | ChinaNationalCentreforBiotechnologyDevelopment，StateScienceandTechnologyMinistry(96 -C0 2 -0 3 -10 ) |
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| 摘 要： | 1 ＩＮＴＲＯＤＵＣＴＩＯＮＣｏｕｍａｒｉｎｉｓｏｎｅｋｉｎｄｏｆｔｈｅｌａｃｔｏｎｅｏｆｏｒｔｈｏ ｈｙｄｒｏｘｙｌｃａｓｓｉａａｃｉｄ .Ｉｔｃｏｍｐｏｓｅｓａｌａｒｇｅｎｕｍｂｅｒｏｆｃｏｕｍａｒｉｃｄｅｒｉｖａｔｅｓｅｒｉｅｓｂｅｃａｕｓｅｏｆｔｈｅｄｉｆｆｅｒｅｎｔｐｏｓｉｔｉｏｎｓ,ｋｉｎｄｓａｎｄｎｕｍｂｅｒｓｏｆｔｈｅｓｕｂｓｔｉｔｕｅｎｔｇｒｏｕｐｓｗｈｉｃｈｌｉｎｋｕｐｗｉｔｈｔｈｅａｒｏｍａｔｉｃａｎｄｌａｃｔｏｎｅｒｉｎｇｓ1 ,2 ,3] .Ｔｈｉｓｋｉｎｄｏｆｃｏｍｐｏｕｎｄｓｅｘ…
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| 关 键 词： | 7－羟－6 8－二甲氧基－香豆素 晶体结构 分子结构 |
Molecular and Crystal Structure of 7-Hydroxy-6,8-dimethoxyl-coumarin |
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| Institution: | Wuhan University |
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| Abstract: | The title compound is separated from the ginkgo hairy rootculture. This compound (C11H10O5, Mr=222.19), crystallizes in the monoclinic system, space group P21/n, with cell parameters: a=9.571(2), b=12.411(2), c=16.934(3)Å, β=101.92(3)°, V=1968.4Å3, Z=8, Dc=1.499g/cm3; F(000)=928.0, MoKα radiation, λ=0.71013Å, R=0.051 and wR=0.115 for 1605 independent reflections with I≥4σ (I). In the molecule, the aromatic and lactone rings are coplanar nearly. One of the two methoxyls is almost coplanar, but another one deviates from the molecular plane. There are intermolecular hydrogen bonds in the crystal. |
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| Keywords: | crystal structure ginkgo hairy root coumarin |
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