Luminescence of tris(2,2′-bipyridine)ruthenium(II) cations ([Ru(bpy)3]2+) adsorbed in mesoporous silicas modified with sulfonated phenethyl group

Minoru Sohmiya, Yoshiyuki Sugahara, Makoto Ogawa

    Research output: Contribution to journalArticle

    26 Citations (Scopus)

    Abstract

    The adsorption of tris(2,2′-bipyridine)rudienium(II) ([Ru(bpy) 3]2+) complex cation into modified mesoporous silicas was investigated. In order to immobilize [Ru(bpy)3]2+, the mesopore surface was modified with sulfonic acid groups by the reactions between MCM-41 and phenethyl(dichloro)methylsilane and the subsequent sulfonation of the attached phenethyl groups with chlorosulfonic acid. The modified mesoporous silicas effectively adsorbed [Ru(bpy)3]2+ from ethanol solution. It was thought that the effective adsorption was the cause of the cooperative effects of the electrostatic interactions between [Ru(bpy) 3]2+ cation and sulfonic acid group and the interactions between the phenyl rings on the mesopore surface and the bipyridine rings of the complex. The variation of the position and the intensity of the luminescence of [Ru(bpy)3]2+ suggested that the average distance between the adjacent [Ru(bpy)3]2+ changed with the loading amounts.

    Original languageEnglish
    Pages (from-to)8836-8841
    Number of pages6
    JournalJournal of Physical Chemistry B
    Volume111
    Issue number30
    DOIs
    Publication statusPublished - 2007 Aug 2

    Fingerprint

    Ruthenium
    Silicon Dioxide
    ruthenium
    Cations
    Luminescence
    Positive ions
    sulfonic acid
    Silica
    luminescence
    silicon dioxide
    cations
    Acids
    Sulfonic Acids
    Adsorption
    Sulfonation
    adsorption
    rings
    Multicarrier modulation
    Coulomb interactions
    Ethanol

    ASJC Scopus subject areas

    • Physical and Theoretical Chemistry

    Cite this

    Luminescence of tris(2,2′-bipyridine)ruthenium(II) cations ([Ru(bpy)3]2+) adsorbed in mesoporous silicas modified with sulfonated phenethyl group. / Sohmiya, Minoru; Sugahara, Yoshiyuki; Ogawa, Makoto.

    In: Journal of Physical Chemistry B, Vol. 111, No. 30, 02.08.2007, p. 8836-8841.

    Research output: Contribution to journalArticle

    @article{2c8c52a936fb44c099c3a41ff8d6199a,
    title = "Luminescence of tris(2,2′-bipyridine)ruthenium(II) cations ([Ru(bpy)3]2+) adsorbed in mesoporous silicas modified with sulfonated phenethyl group",
    abstract = "The adsorption of tris(2,2′-bipyridine)rudienium(II) ([Ru(bpy) 3]2+) complex cation into modified mesoporous silicas was investigated. In order to immobilize [Ru(bpy)3]2+, the mesopore surface was modified with sulfonic acid groups by the reactions between MCM-41 and phenethyl(dichloro)methylsilane and the subsequent sulfonation of the attached phenethyl groups with chlorosulfonic acid. The modified mesoporous silicas effectively adsorbed [Ru(bpy)3]2+ from ethanol solution. It was thought that the effective adsorption was the cause of the cooperative effects of the electrostatic interactions between [Ru(bpy) 3]2+ cation and sulfonic acid group and the interactions between the phenyl rings on the mesopore surface and the bipyridine rings of the complex. The variation of the position and the intensity of the luminescence of [Ru(bpy)3]2+ suggested that the average distance between the adjacent [Ru(bpy)3]2+ changed with the loading amounts.",
    author = "Minoru Sohmiya and Yoshiyuki Sugahara and Makoto Ogawa",
    year = "2007",
    month = "8",
    day = "2",
    doi = "10.1021/jp064654r",
    language = "English",
    volume = "111",
    pages = "8836--8841",
    journal = "Journal of Physical Chemistry B Materials",
    issn = "1520-6106",
    publisher = "American Chemical Society",
    number = "30",

    }

    TY - JOUR

    T1 - Luminescence of tris(2,2′-bipyridine)ruthenium(II) cations ([Ru(bpy)3]2+) adsorbed in mesoporous silicas modified with sulfonated phenethyl group

    AU - Sohmiya, Minoru

    AU - Sugahara, Yoshiyuki

    AU - Ogawa, Makoto

    PY - 2007/8/2

    Y1 - 2007/8/2

    N2 - The adsorption of tris(2,2′-bipyridine)rudienium(II) ([Ru(bpy) 3]2+) complex cation into modified mesoporous silicas was investigated. In order to immobilize [Ru(bpy)3]2+, the mesopore surface was modified with sulfonic acid groups by the reactions between MCM-41 and phenethyl(dichloro)methylsilane and the subsequent sulfonation of the attached phenethyl groups with chlorosulfonic acid. The modified mesoporous silicas effectively adsorbed [Ru(bpy)3]2+ from ethanol solution. It was thought that the effective adsorption was the cause of the cooperative effects of the electrostatic interactions between [Ru(bpy) 3]2+ cation and sulfonic acid group and the interactions between the phenyl rings on the mesopore surface and the bipyridine rings of the complex. The variation of the position and the intensity of the luminescence of [Ru(bpy)3]2+ suggested that the average distance between the adjacent [Ru(bpy)3]2+ changed with the loading amounts.

    AB - The adsorption of tris(2,2′-bipyridine)rudienium(II) ([Ru(bpy) 3]2+) complex cation into modified mesoporous silicas was investigated. In order to immobilize [Ru(bpy)3]2+, the mesopore surface was modified with sulfonic acid groups by the reactions between MCM-41 and phenethyl(dichloro)methylsilane and the subsequent sulfonation of the attached phenethyl groups with chlorosulfonic acid. The modified mesoporous silicas effectively adsorbed [Ru(bpy)3]2+ from ethanol solution. It was thought that the effective adsorption was the cause of the cooperative effects of the electrostatic interactions between [Ru(bpy) 3]2+ cation and sulfonic acid group and the interactions between the phenyl rings on the mesopore surface and the bipyridine rings of the complex. The variation of the position and the intensity of the luminescence of [Ru(bpy)3]2+ suggested that the average distance between the adjacent [Ru(bpy)3]2+ changed with the loading amounts.

    UR - http://www.scopus.com/inward/record.url?scp=34548215144&partnerID=8YFLogxK

    UR - http://www.scopus.com/inward/citedby.url?scp=34548215144&partnerID=8YFLogxK

    U2 - 10.1021/jp064654r

    DO - 10.1021/jp064654r

    M3 - Article

    C2 - 17604390

    AN - SCOPUS:34548215144

    VL - 111

    SP - 8836

    EP - 8841

    JO - Journal of Physical Chemistry B Materials

    JF - Journal of Physical Chemistry B Materials

    SN - 1520-6106

    IS - 30

    ER -