Elucidation of Solvatochromism for the Ligand Field Absorption Bands of Polyamine-N-polycarboxylato Cobaltate(III)and Chromate(III)Complexes of(M(N)2(O)4)Type.
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概要
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The solvatochromism of the first ligand field absorption bands and/or the solvent dependence of <SUP>13</SUP>C and <SUP>59</SUP>Co NMR shifts for <I>trans</I>- and <I>cis</I>-[M(N)<SUB>2</SUB>(O)<SUB>4</SUB>] type complexes of cobalt(III) or chromium(III) with various kinds of polyamine-<I>N</I>-polycarboxylato ligands was elucidated in terms of the angular overlap model (AOM) parametrization. On the basis of the difference in the solvent-dependence of spectroscopic data of the complexes studied in various solvents, it was found that the solvatochromism could result from variations of the metal-ligand σ and/or π bond interactions (expressed by the <I>e</I><SUB>σ</SUB>(O), <I>e</I><SUB>σ</SUB>(N), and anisotropic <I>e</I><SUB>π</SUB>(O) AOM parameter values) due to the preferential solvation toward the oxygen <I>P</I><SUB>π</SUB> orbitals coplanar with the M(O)<SUB>2</SUB> coordinate planes.
- 公益社団法人 日本化学会の論文
著者
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Sakagami Narumi
Department Of Chemistry University Of Tsukuba
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Kaizaki Sumio
Department Of Chemistry Faculty Of Science Osaka University
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Koine Norio
Department Of Applied Chemistry Faculty Of Engineering Ehime University
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Sakagami Narumi
Department of Chemistry, Faculty of Science, Nara Women's University
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