Preparation and characterization of cobalt(III) complexes with S,S-bridge R,S-sexidentate-N2,S2,O2 type ligands. Crystal structure of (+)5C6D0-((2R,9S)-diamino-3,3,8,8-tetramethyl-4,7-dithia-1,10-decanedioato)cobalt(III) ion.
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概要
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[Co(<I>R</I>,<I>S</I>-sexidentate-<I>N</I><SUB>2</SUB>,<I>S</I><SUB>2</SUB>,<I>O</I><SUB>2</SUB>)] and [Co(<I>R</I>-terdentate-<I>N</I>,<I>S</I>,<I>O</I>)(<I>S</I>-<I>terdentate</I>-<I>N</I>,<I>S</I>,<I>O</I>)] type complexes, including the title complex cation, [Co(<I>R</I>,<I>S</I>-ebp)]<SUP>+</SUP>, were prepared and resolved. The crystal structure and absolute configuration of the (+)<SUB>560</SUB><SUP>CD</SUP>-[Co(<I>R</I>,<I>S</I>-ebp)]<SUP>+</SUP> isomer were determined by X-ray diffraction. The complex cation has an [<I>S</I>] configuration. The <I>R</I>,<I>S</I>-ebp coordinates as a sexidentate, of which two sulfur donor atoms take selectively <I>R</I>(<I>S</I>). The absorption and CD spectra are discussed in comparison with those of the related complexes.
著者
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Okamoto Ken-ichi
Department Of Advanced Materials Science & Engineering Faculty Of Engineering Yamaguchi Universi
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Hidaka Jinsai
Department of Chemistry Faculty of Science Osaka University
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Nomoto Masayo
Department of Chemistry, University of Tsukuba
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Kanesaka Mikako
Department of Chemistry, University of Tsukuba
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