ラセミ混合物(コングロメレート)結晶生成における水素結合ネットワークの役割 Role of Hydrogen-Bond Network in the Fromation of a Conglomerate

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著者

    • 金原 数 KINNBARA Kazushi
    • 東京大学大学院工学系研究科化学生命工学専攻 Department of Chemistry and Biotechnology, Graduate School of Engineering, The University of Tokyo
    • 西郷 和彦 SAIGO Kazuhiko
    • 東京大学大学院工学系研究科化学生命工学専攻 Department of Chemistry and Biotechnology, Graduate School of Engineering, The University of Tokyo

抄録

X-ray crystallographic studies were carried out for conglomerate salts, racemic-compound salts, and enantiomerically pure salts of chiral primary amines with achiral mono-carboxylic acids. The crystal structures of the conglomerate salts revealed that these crystals can be regarded as being a supramolecular assembly of a characteristic columnar hydrogen-bond network, in which the ammonium cations and the carboxylate anions are aligned around a twofold screw axis (2<SUB>1</SUB>-column) . On the other hand, the crystal structures of the racemic-compound salts could be roughly classified into two types. One type is a crystal consisting of 2<SUB>1</SUB>columns; the other type is a crystal consisting of a different type of columnar hydrogen-bond network, in which the ammonium cations and the carboxylate anions are related by inversion centers (<I>i</I>-column) .These results suggest that both the formation and the assembly of 2<SUB>1</SUB>columns are essential in the formation of conglomerates for these salts.

収録刊行物

  • 日本結晶学会誌

    日本結晶学会誌 38(6), 414-420, 1996-12-31

    The Crystallographic Society of Japan

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各種コード

  • NII論文ID(NAID)
    10002025502
  • NII書誌ID(NCID)
    AN00188364
  • 本文言語コード
    JPN
  • 資料種別
    OTR
  • ISSN
    03694585
  • NDL 記事登録ID
    4170866
  • NDL 雑誌分類
    ZM46(科学技術--地球科学--岩石・鉱物・鉱床)
  • NDL 請求記号
    Z15-138
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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