結晶状態に働く弱い分子間相互作用-分子認識から単結晶相反応まで-
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概要
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The role of weak intermolecular interactions in “crystal engineering” is briefly reviewed. The selective complexation of TNF (1) and mNBA (2) with 2, 6-DMN was studied in detail to test the validity of C-H··O hydrogen bonding in determining the molecular arrangement in multi-component organic solids. In order to find the new interacting sites in crystal 1, 2, 5-chalcogenadiazoles substituted with a dicyanomethylene group were designed. Systematic structural analyses of 4-12 indicated the presence of novel chalcogen-cyano interaction. This interaction is one of the sources of the directionality in crystal packing and caused the formation of “ribbon” -like networks in the anion-radical salts as well as the CT crystals of 7. By the network were formed the inclusion cavities in the latter, which can be used for the isomer recognition or as unique reaction centers for topochemical transformation. The single crystal-to-single crystal reaction occurred in a certain case, and the S··N≡C interaction was suggested to take part in maintaining the crystal matrix during the solid-state reaction.
- 社団法人 有機合成化学協会の論文
- 1995-05-01
著者
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Susuki Toshihiro
Institute For Fundamental Research Of Organic Chemistry Kyushu University
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鈴木 孝紀
北海道大学大学院 理学研究科 化学専攻
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鈴木 孝紀
北海道大学大学院理学研究院化学部門
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