Photochromism of azobenzene in the hydrophobic interlayer spaces of dialkyldimethylammonium-fluor-tetrasilicic mica films

M. Ogawa, M. Hama, Kazuyuki Kuroda

    Research output: Contribution to journalArticle

    42 Citations (Scopus)

    Abstract

    ABSTRACT: Photochemical isomerization of azobenzenc intercalated in the Hydrophobie, interlayer spaces of swelling fluor-tetrasilicic micas exchanged with dialkyldimethylammonium ions, with the alkyl chain length from 10 to 18, was investigated. Thin films of the organoammonium-mica-azobenzene intercalation compounds were obtained by depositing a suspension of the organoammonium-micas (prepared using a toluene/methanol solution of azobcnzene) on quartz substrates. The intercalated azobenzene showed reversible photochromic reactions induced by UV and visible light irradiation. The fraction of the photochemically formed c/s-isomer in the photostationary states decreased with a decrease in temperature. The observed change in the photochemical reactions is thought to reflect changes in the states of the dialkyldimethylammonium ions in the interlayer space of the swelling fluor-tetrasilicic mica.

    Original languageEnglish
    Pages (from-to)213-220
    Number of pages8
    JournalClay Minerals
    Volume34
    Issue number2
    Publication statusPublished - 1999

    Fingerprint

    Photochromism
    mica
    swelling
    Swelling
    Ions
    Intercalation compounds
    Quartz
    ion
    Photochemical reactions
    Toluene
    Isomerization
    Chain length
    Isomers
    toluene
    Methanol
    methanol
    Suspensions
    irradiation
    Irradiation
    quartz

    ASJC Scopus subject areas

    • Geochemistry and Petrology

    Cite this

    Photochromism of azobenzene in the hydrophobic interlayer spaces of dialkyldimethylammonium-fluor-tetrasilicic mica films. / Ogawa, M.; Hama, M.; Kuroda, Kazuyuki.

    In: Clay Minerals, Vol. 34, No. 2, 1999, p. 213-220.

    Research output: Contribution to journalArticle

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    AB - ABSTRACT: Photochemical isomerization of azobenzenc intercalated in the Hydrophobie, interlayer spaces of swelling fluor-tetrasilicic micas exchanged with dialkyldimethylammonium ions, with the alkyl chain length from 10 to 18, was investigated. Thin films of the organoammonium-mica-azobenzene intercalation compounds were obtained by depositing a suspension of the organoammonium-micas (prepared using a toluene/methanol solution of azobcnzene) on quartz substrates. The intercalated azobenzene showed reversible photochromic reactions induced by UV and visible light irradiation. The fraction of the photochemically formed c/s-isomer in the photostationary states decreased with a decrease in temperature. The observed change in the photochemical reactions is thought to reflect changes in the states of the dialkyldimethylammonium ions in the interlayer space of the swelling fluor-tetrasilicic mica.

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