TY - JOUR
T1 - Incorporation of tris(2,2′-bipyridine)ruthenium(II) cations ([Ru(bpy)3]2+) into a mesoporous silica
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.
KW - FSM
KW - Luminescence
KW - Probe
KW - Tris(2,2′-bipyridine)ruthenium(II)complex
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UR - http://www.scopus.com/inward/citedby.url?scp=0035504817&partnerID=8YFLogxK
U2 - 10.1016/S1387-1811(01)00339-0
DO - 10.1016/S1387-1811(01)00339-0
M3 - Article
AN - SCOPUS:0035504817
VL - 48
SP - 159
EP - 164
JO - Microporous Materials
JF - Microporous Materials
SN - 1387-1811
IS - 1-3
ER -