環境負荷物質-シクロデキストリン包接化合物の構造化学(1) -1,4-dioxane-α-cyclodextrin錯体のX線結晶構造解析

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タイトル別名
  • Structural Chemistry of the Cyclodextrin Inclusion Complexes of Environmental Load Substances - X-ray Structural Studies on 1,4-dioxane-α-cyclodextrin Complex
  • カンキョウ フカ ブッシツ-シクロデキストリン ホウセツカゴウブツ ノ コウゾウ カガク(1)1,4-dioxane-a-cyclodextrin サクタイ ノ Xセン ケッショウ コウゾウ カイセキ

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抄録

The crystal structure of an inclusion complex of α-cyclodextrin with 1,4-dioxane has been determined by X-ray diffraction method. The crystals were very unstable in air, so they were treated by the flash cooling method under low temperature gas flow of liquid nitrogen. The complex crystallized in monoclinic, P21 with a=14.8686(3), b=22.7905(4), c=16.5430(3)Å, β=104.498(1)°. The inclusion complex was composed of three dioxane molecules and a dimer of α-cyclodextrin. Among three dioxane molecules, two of them are fixed firmly to each α-cylrodextrin monomer, however, the remaining dioxane molecule is fixed loosely in between both cyclodextrins and is structurally disordered.

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