The Raman spectra of cobalt(III) complexes. V. Differentiation between two cis(a) isomers of (Coa2(NH3)2(en)) type complexes (a=NO2- and CN-).

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概要

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• Three geometrical isomers of [Co(NO<SUB>2</SUB>)<SUB>2</SUB>(NH<SUB>3</SUB>)<SUB>2</SUB>(en)]<SUP>+</SUP> were newly prepared. Two <I>cis</I>(NO<SUB>2</SUB>) isomers (trans(NH<SUB>3</SUB>) and <I>cis</I>,<I>cis</I>) were clearly differentiated on the basis of the polarizabilities of the Raman bands due to Co–N(NH<SUB>3</SUB> and en) stretching vibrations. The Raman polarization measurement was also applied successfully to the determination of the geometrical configurations of two [Co(CN)<SUB>2</SUB>(NH<SUB>3</SUB>)<SUB>2</SUB>(en)]<SUP>+</SUP> isomers. The structural assignments were substantiated by optical resolution of the <I>cis</I>,<I>cis</I> isomers of [Coa<SUB>2</SUB>(NH<SUB>3</SUB>)<SUB>2</SUB>(en)]<SUP>+</SUP> (a=NO<SUB>2</SUB><SUP>−</SUP> and CN<SUP>−</SUP>).

• 公益社団法人 日本化学会の論文

著者

• Kanamori Kan

  Department Of Chemistry Faculty Of Science Toyama University

• Shimura Yoichi

  Department of Chemistry Faculty of Science Osaka University

• Akamatsu Keiji

  Department of Chemistry, Faculty of Science, Osaka University

• Kawai Kiyoyasu

  Department of Chemistry, Faculty of Science, Toyama University

• Bansho Ikuko

  Department of Chemistry, Faculty of Science, Toyama University

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