Luminescence of tris(2,2′-bipyridine)ruthenium(II) cations ([Ru(bpy)3]2+) adsorbed in 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

84 被引用数 (Scopus)

抄録

The adsorption of a cationic luminescence probe, tris(2,2′-bipyridine)ruthenium(II) ([Ru(bpy)3]2+), into a mesoporous silica was investigated in order to understand the nature of mesoporous silicas as immobilizing media for organic guest species. The adsorption of the probe into the mesoporous silica was conducted by the reaction using a dimethylformamide solution of [Ru(bpy)3]2+ chloride. The adsorbed amount of [Ru(bpy)3]2+ was controlled by changing the concentration of the solutions. 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 hydratiori of the samples, indicating that the aggregated [Ru(bpy)3]2+ ions were dispersed in the mesopore to suppress the self-quenching.

本文言語English
ページ(範囲)8554-8556
ページ数3
ジャーナルJournal of Physical Chemistry B
104
35
DOI
出版ステータスPublished - 2000 9月 7
外部発表はい

ASJC Scopus subject areas

  • 物理化学および理論化学
  • 表面、皮膜および薄膜
  • 材料化学

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