Molecular complexes of N,N,N',N'-tetraisopropyloxamide. Crystal structures of its 1:1 adduct with m-cresol, and its 1:1 and 1:2 adducts with p-cresol.
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概要
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The crystal structures of a 1:1 complex (I) of <I>N</I>,<I>N</I>,<I>N</I>′,<I>N</I>′-tetraisopropyloxamide with <I>m</I>-cresol, a 1:1 complex (<B>II</B>) with <I>p</I>-cresol, and a 1:2 complex (<B>III</B>) with <I>p</I>-cresol have been determined by X-ray crystallography. The crystal data are: <B>I</B>, C<SUB>21</SUB>H<SUB>36</SUB>N<SUB>2</SUB>O<SUB>3</SUB>, <I>P</I>2<SUB>1</SUB>⁄<I>c</I>, <I>a</I>=12.104(4), <I>b</I>=6.860(3) <I>c</I>=27.186(8) Å, β=93.46(2)°, <I>Z</I>=4, and <I>R</I><SUB>F</SUB>=0.093 for 1661 observed Mo <I>K</I>α data; <B>II</B>, C<SUB>21</SUB>H<SUB>36</SUB>N<SUB>2</SUB>O<SUB>3</SUB>, <I>P</I>2<SUB>1</SUB>⁄<I>n</I>, <I>a</I>=7.825(2), <I>b</I>=11.379(4), <I>c</I>=25.39(1) Å, β=91.01(2)°, <I>Z</I>=4, and <I>R</I><SUB>F</SUB>=0.105 for 1326 data; <B>III</B>, C<SUB>28</SUB>H<SUB>44</SUB>N<SUB>2</SUB>O<SUB>4</SUB>, <I>C</I>2⁄<I>c</I>, <I>a</I>=11.744(3), <I>b</I>=10.658(2), <I>c</I>=23.576(4) Å, β=102.07(2)°, <I>Z</I>=4, <I>R</I><SUB>F</SUB>=0.045 for 1382 data. The stoichiometric formulas faithfully represent the structures of all three complexes, with each phenolic OH group forming a donor hydrogen bond to an O atom of the oxamide host molecule.
- 公益社団法人 日本化学会の論文
著者
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Mak Thomas
Department Of Chemistry Department Of Biology And Institute Of Chinese Medicine The Chinese Universi
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Toda Fumio
Department Of Applied Chemistry Faculty Of Engineering Ehime University
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Tagami Yasunori
Department of Industrial Chemistry, Faculty of Engineering, Ehime University
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