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

doi:10.1016/S1387-1811(01)00339-0

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

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

33 Citations (Scopus)

Abstract

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.

Original language	English
Pages (from-to)	159-164
Number of pages	6
Journal	Microporous and Mesoporous Materials
Volume	48
Issue number	1-3
DOIs	https://doi.org/10.1016/S1387-1811(01)00339-0
Publication status	Published - 2001 Nov
Externally published	Yes

Keywords

FSM
Luminescence
Probe
Tris(2,2′-bipyridine)ruthenium(II)complex

ASJC Scopus subject areas

Chemistry(all)
Materials Science(all)
Condensed Matter Physics
Mechanics of Materials

Access to Document

10.1016/S1387-1811(01)00339-0

Cite this

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

abstract = "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.",

keywords = "FSM, Luminescence, Probe, Tris(2,2′-bipyridine)ruthenium(II)complex",

author = "Makoto Ogawa and Tomoyuki Nakamura and Mori, {Jun Ichi} and Kazuyuki Kuroda",

year = "2001",

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doi = "10.1016/S1387-1811(01)00339-0",

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AU - Ogawa, Makoto

AU - Nakamura, Tomoyuki

AU - Mori, Jun Ichi

AU - Kuroda, Kazuyuki

PY - 2001/11

Y1 - 2001/11

N2 - 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.

AB - 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.

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KW - Probe

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