Incorporation of tris(2,2′-bipyridine)ruthenium(II) cations ([Ru(bpy)3]2+) into a mesoporous silica

Makoto Ogawa*, Tomoyuki Nakamura, Jun Ichi Mori, Kazuyuki Kuroda

*この研究の対応する著者

研究成果: Article査読

33 被引用数 (Scopus)

抄録

The luminescence characteristics of tris(2.2'-bipyridine)ruthenium(II) ([Ru(bpy)3]2+) adsorbed on a mesoporous silica was investigated. The adsorption of the complex cation into the mesoporous silica was conducted by the reaction using a dimethylformamide solution of [Ru(bpy)3]2+ chloride hexahydrate. The amount of adsorbed [Ru(bpy)3]2+ was controlled by changing the concentration of the solution. When the samples were dehydrated, the adsorbed [Ru(bpy)3]2+ ions aggregated to cause self-quenching of the luminescence. The luminescence was intensified dramatically upon hydration of the samples, indicating that the aggregated [Ru(bpy)3]2+ ions were dispersed in the mesopore to suppress the self-quenching. The luminiscence characteristics of the adsorbed [Ru(bpy)3]2+ significantly changed upon washing, showing the possible role of the co-adsorbed Cl- ions.

本文言語English
ページ(範囲)159-164
ページ数6
ジャーナルMicroporous and Mesoporous Materials
48
1-3
DOI
出版ステータスPublished - 2001 11月
外部発表はい

ASJC Scopus subject areas

  • 化学 (全般)
  • 材料科学(全般)
  • 凝縮系物理学
  • 材料力学

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