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

    Research output: Contribution to journalArticle

    80 Citations (Scopus)

    Abstract

    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.

    Original languageEnglish
    Pages (from-to)8554-8556
    Number of pages3
    JournalJournal of Physical Chemistry B
    Volume104
    Issue number35
    Publication statusPublished - 2000 Sep 7

    Fingerprint

    Ruthenium
    Silicon Dioxide
    ruthenium
    Cations
    Luminescence
    Positive ions
    Silica
    luminescence
    silicon dioxide
    cations
    Quenching
    quenching
    Adsorption
    adsorption
    probes
    Ions
    Dimethylformamide
    ions
    chlorides
    Chlorides

    ASJC Scopus subject areas

    • Physical and Theoretical Chemistry
    • Engineering(all)

    Cite this

    Luminescence of tris(2,2′-bipyridine)ruthenium(II) cations ([Ru(bpy)3]2+) adsorbed in mesoporous silica. / Ogawa, Makoto; Nakamura, Tomoyuki; Mori, Jun Ichi; Kuroda, Kazuyuki.

    In: Journal of Physical Chemistry B, Vol. 104, No. 35, 07.09.2000, p. 8554-8556.

    Research output: Contribution to journalArticle

    @article{5de434e8f1b640b9bf0d6f42ae44ae33,
    title = "Luminescence of tris(2,2′-bipyridine)ruthenium(II) cations ([Ru(bpy)3]2+) adsorbed in mesoporous silica",
    abstract = "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.",
    author = "Makoto Ogawa and Tomoyuki Nakamura and Mori, {Jun Ichi} and Kazuyuki Kuroda",
    year = "2000",
    month = "9",
    day = "7",
    language = "English",
    volume = "104",
    pages = "8554--8556",
    journal = "Journal of Physical Chemistry B Materials",
    issn = "1520-6106",
    publisher = "American Chemical Society",
    number = "35",

    }

    TY - JOUR

    T1 - Luminescence of tris(2,2′-bipyridine)ruthenium(II) cations ([Ru(bpy)3]2+) adsorbed in mesoporous silica

    AU - Ogawa, Makoto

    AU - Nakamura, Tomoyuki

    AU - Mori, Jun Ichi

    AU - Kuroda, Kazuyuki

    PY - 2000/9/7

    Y1 - 2000/9/7

    N2 - 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.

    AB - 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.

    UR - http://www.scopus.com/inward/record.url?scp=0034274547&partnerID=8YFLogxK

    UR - http://www.scopus.com/inward/citedby.url?scp=0034274547&partnerID=8YFLogxK

    M3 - Article

    VL - 104

    SP - 8554

    EP - 8556

    JO - Journal of Physical Chemistry B Materials

    JF - Journal of Physical Chemistry B Materials

    SN - 1520-6106

    IS - 35

    ER -