Reactions of metal complexes with carbohydrates. Synthesis and structure of (2-((2-aminoethyl)amino)-2-deoxy-L-sorbose)(ethylenediamine)nickel(II) dichloride hemi methanol solvate: (Ni(en)(L-sor-en))Cl21/2CH3OH(en=ethylenediamine and sor=sorbose).
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概要
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The synthesis and crystal structure of the complex [Ni(en)(L-sor-en)]Cl<SUB>2</SUB>·1/2CH<SUB>3</SUB>OH which was derived from the reaction of tris(ethylenediamine)nickel(II) dichloride dihydrate with L-sorbose are described. Crystal-lographic details for the complex are follows: space group C2 (monoclinic); <I>a</I>=17.862(2) Å, <I>b</I>=8.212(1) Å, <I>c</I>=12.644(2) Å, β=90.89(1)°; <I>Z</I>=4; <I>D</I><SUB>calcd</SUB>=1.53 gcm<SUP>−3</SUP>. The structure was solved by heavy atom methods, and the structure parameters including almost all hydrogen atoms were refined by least-squares methods. The final <I>R</I> factor was 0.032 for 2680 independent reflections. The nickel atom is octahedrally coordinated with a bidentate ethylenediamine and a tetradentate glycosylamine ligand of L-sor-en. L-Sorbose moiety adopts the six-membered α-<SUP>2</SUP>C<SUB>5</SUB> chair conformation. In addition to the synthesis and structure of this complex, we report the results of absorption and circular dichroism spectroscopy.
- 公益社団法人 日本化学会の論文
著者
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TSUBOMURA Taro
Department of Industrial Chemistry, Faculty of Engneering, Seikei University
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Yano Shigenobu
Department Of Chemistry Faculty Of Science Nara Women's University
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Yoshikawa Sadao
Department Of Applied Chemistry Faculty Of Science And Technology Keio University
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Ito Tasuku
Division of Applied Molecular Science, Institute for Molecular Science
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Ito Tasuku
Division of Applied Molecular Science, Institute for Molecular Science, Okazaki National Reserch Institute
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Toriumi Koshiro
Division of Applied Molecular Science, Institute for Molecular Science, Okazaki National Reserch Institute
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Toriumi Koshiro
Division of Applied Molecular Science, Institute for Molecular Science
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Tsubomura Taro
Department of Synthetic Chemistry, Faculty of Engineering, The University of Tokyo
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Tsubomura Taro
Department of Industrial Chemistry, Faculty of Engineering, Seikei University
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