13CNMR Spectra of series of bis(2,2'-bipyridine)cobalt(III) and bis(1,10-phenanthroline)cobalt(III) complexes.
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概要
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Twenty-eight cobalt(III) complexes of these types: [Co(LL)<SUB>3</SUB>]<SUP>3+</SUP> and [CoXX(LL)<SUB>2</SUB>]<SUP><I>n</I>+</SUP> (LL=2,2′-bipyridine or 1,10-phenanthroline, and XX=2CN<SUP>−</SUP>, 2NO<SUB>2</SUB><SUP>−</SUP>, ethylenediamine, 2NH<SUB>3</SUB>, glycinate ion, 2H<SUB>2</SUB>O, C<SUB>2</SUB>O<SUB>4</SUB><SUP>2−</SUP>, CO<SUB>3</SUB><SUP>2−</SUP>, 2SCN<SUP>−</SUP>, 2N<SUB>3</SUB><SUP>−</SUP>, 2CH<SUB>3</SUB>COO<SUP>−</SUP>, 2Cl<SUP>−</SUP>, or 2Br<SUP>−</SUP>, were prepared, and their <SUP>13</SUP>C NMR spectra were recorded. Most of the resonances in the complexes were assigned mainly by the technique of selective proton decoupling. In the bpy complexes, the chemical-shift difference between corresponding carbon atoms was the greatest in the C-6 and C-6′ pair. The phen complexes also gave parallel results. The main factor responsible for the chemical-shift differences of the C-6 and C-6′ pair is explained as resulting from the difference in σ-bonding ability between the pyridyl group and the ligand, X.
- 公益社団法人 日本化学会の論文
著者
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Yoshikawa Yuzo
Department Of Chemistry Faculty Of Science Okayama University
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Utsuno Shunji
Department Of Chemistry Faculty Of Science Shizuoka University
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Tatehata Akira
Department Of Chemistry Faculty Of Science Shizuoka University
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Yamatera Hideo
Department of Chemistry, Faculty of Science, Nagoya University
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