RACEMIC ADSORPTION OF TRIS (1, 10-PHENANTHROLINE)RUTHENIUM (II) : ONTO A MICA SURFACE

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概要

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• The adsorption of a cationic metal complex, [Ru(phen)_3]^<2+> (phen=1, 10-phenanthroline), onto a mica surface from its aqueous solution was investigated. An attention was focused on the effect of molecular chirality on adsorption behavior. The saturated adsorption was determined to be (1.7±0.1)×10^<-6> and (1.3±0.1)×10^<-6> mol g^<-1> for the racemic mixture and the △- or Λ-enantiomer, respectively. When adsorption was made from a partially resolved solution of [Ru(phen)_3](ClO_4)_2, the increase of enantiomeric excess was observed in a supernatant with the progress of adsorption. The results indicated that [Ru(phen)_3]^<2+> was adsorbed as a racemic pair rather than as an enantiomeric pair. Atomic force microscope observation showed that the surface remained smooth when a mica surface was in contact with an aqueous solution of racemic [Ru(phen)_3](ClO_4)_2, while it changed from a smooth surface to rough one for the △-enantiomeric solution. The change was interpreted in terms of the formation of the compact bimolecular layer for the racemic mixture, while a rough multilayer adsorption layer was formed for the enantiomer.

• 日本粘土学会の論文

著者

• YAMAGISHI Akihiko

  Department of Life Sciences, Tokyo University of Pharmacy and Life Sciences

• Nishimura Shinichiro

  Division Of Biological Sciences Graduate School Of Science Hokkaido University

• WAKABAYASHI NOBORU

  Division of Biological Sciences, Graduate school of Science, Hokkaido University

• KAKEGAWA NORISHIGE

  Department of Earth and planetary Science, Graduate School of Science, The University of Tokyo

• SATO HISAKO

  Department of Earth and planetary Science, Graduate School of Science, The University of Tokyo

• Sato Hisako

  Department Of Earth And Planetary Science Graduate School Of Science The University Of Tokyo:crest J

• Sato Hisako

  Department Of Chemistry Faculty Of Science Ehime University

• Kakegawa Norishige

  Department Of Earth And Planetary Science Graduate School Of Science The University Of Tokyo

• Wakabayashi Noboru

  Division Of Biological Sciences Graduate School Of Science Hokkaido University

• Yamagishi Akihiko

  Department Of Earth And Planetary Science Graduate School Of Science The University Of Tokyo:crest J

• Yamagishi Akihiko

  Department Of Chemistry College Of Arts And Sciences The University Of Tokyo

• Sato Hisako

  Department Of Chemistry And Biology Graduate School Of Science And Engineering Ehime University

• YAMAGISHI Akihiko

  Department of Applied Molecular Biology, Tokyo University of Pharmacy and Life Sciences

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