Preparation and stereochemistry of bis(1,10-phenanthroline)- and bis-(2,2'-bipyridine)chromium(III) complexes containing 2,2'-bipyridine N,N'-dioxide or its 3,3'-dimethyl derivative.

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概要

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• Bis(1,10-phenanthroline)- and bis(2,2′-bipyridine)chromium(III) complexes containing a seven-membered chelate ligand, 2,2′-bipyridine <I>N</I>,<I>N</I>′-dioxide(bpdo) or 3,3′-dimethyl-2,2′-bipyridine <I>N</I>,<I>N</I>′-dioxide(mbdo) were prepared. Each complex gave only one of two possible pairs of enantiomers resolved by SP-Sephadex column chromatography. On the basis of the circular dichroism spectra, molecular models, and recovery of the optically active free mbdo ligand from the resolved mbdo complexes, it was found that all the enantiomeric pairs consist of <I>Δ</I>(δ) and <I>Λ</I>(λ) isomers involving the skew dioxide chelate ligands in the <I>ob</I> configuration.

• 公益社団法人 日本化学会の論文

著者

• Kanno Hideaki

  Department Of Chemistry Faculty Of Science Shizuoka University

• Kashiwabara Kazuo

  Department Of Chemistry Faculty Of Science Nagoya University

• Fujita Junnosuke

  Department of Chemistry Faculty of Science Osaka University

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