Preparation, structure, and circular dichroism spectra of [Co(L1)(L2)]+-type complexes (L1=iminodiacetato or N-methyliminodiacetato and L2=3-azapentane-1,5-diamine or 3-methyl-3-azapentane-1,5-diamine).
スポンサーリンク
概要
- 論文の詳細を見る
Three geometrical isomers (mer, u-fac, and s-fac) possible in each of [Co(ida)(mdien)]<SUP>+</SUP> and [Co(mida)(mdien)]<SUP>+</SUP> and u-fac isomer of [Co(mida)(dien)]<SUP>+</SUP> (ida=iminodiacetate, mida=<I>N</I>-methyliminodiacetate, mdien=3-methyl-3-azapentane-1,5-diamine, and dien=3-azapentane-1,5-diamine) were newly prepared, and the u-fac isomers were optically resolved. The geometrical structures of these isomers were assigned on the basis of their absorption and <SUP>13</SUP>C NMR spectral data. The crystal structure of (+)<SUB>550</SUB><SUP>CD</SUP>-<I>u</I>-<I>fac</I>-[Co(ida)(mdien)]·(+)<SUB>575</SUB><SUP>CD</SUP>-[Co(ox)<SUB>2</SUB>(en)]·6H<SUB>2</SUB>O was determined by X-ray diffraction method. The crystal is monoclinic, space group <I>P</I>2<SUB>1</SUB>, <I>a</I>=15.793(6), <I>b</I>=12.855(3), <I>c</I>=7.070(2) Å, β=96.80(5)°, and <I>Z</I>=2. Both of the absolute configurations of the two complex ions take Λ configuration. The relationship between the absolute configurations and the CD spectral behaviors of the u-fac isomers is also discussed.
- 公益社団法人 日本化学会の論文
著者
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Yasui Takaji
Department Of Chemistry Faculty Of Science Kochi University
-
Ama Tomoharu
Department Of Chemistry Faculty Of Science Kochi University
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Okamoto Ken-ichi
Department Of Advanced Materials Science & Engineering Faculty Of Engineering Yamaguchi Universi
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Kawaguchi Hiroshi
Department Of Applied Chemistry Faculty Of Engineering Utsunomiya University
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Hidaka Jinsai
Department of Chemistry Faculty of Science Osaka University
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