In situ complexation of 8-hydroxyquinoline and 4,4'-bipyridine with zinc(II) in the interlayer space of montmorillonite

Patcharaporn Pimchan, Nithima Khaorapapong, Minoru Sohmiya, Makoto Ogawa

    Research output: Contribution to journalArticle

    14 Citations (Scopus)

    Abstract

    A series of mixed-ligand zinc complexes was prepared by coordination of 8-hydroxyquinoline and 4,4'-bipyridine to interlayer zinc(II) ion of montmorillonite through solid-solid reactions at room temperature. The intercalation of the ligands and the in situ formation of the mixed-ligand zinc complexes in the interlayer spaces of montmorillonite were confirmed by powder XRD, TG-DTA, as well as FT-IR, UV-Vis and photoluminescence spectroscopies. The intense photoluminescence of zinc(8-hydroxyquinoline)(4,4'-bipyridine)-montmorillonite hybrids appeared at 503nm while photoluminescence of zinc(4,4'-bipyridine)(8-hydroxyquinoline)-montmorillonite hybrids was seen at 511nm. The blue- and red-shifts of the luminescent bands of the hybrids compared with that of zinc(8-hydroxyquinoline)2-montmorillonite (506nm) suggested that the different types and/or microstructure of the mixed-ligand zinc complexes formed in the interlayer spaces of montmorillonite. The photoluminescence intensities of the as-prepared mixed-ligand zinc complexes in montmorillonite decreased in the order of zinc(8-hydroxyquinoline)(4,4'-bipyridine)2-montmorillonite>zinc(8-hydroxyquinoline)(4,4'-bipyridine)-montmorillonite>zinc(4,4'-bipyridine)(8-hydroxyquinoline)2-montmorillonite>zinc(4,4'-bipyridine)(8-hydroxyquinoline)-montmorillonite>zinc(8-hydroxyquinoline)-montmorillonite. The sequence of ligand loading affected the molecular structure and/or packing of the formed complex to control the photoluminescence efficiencies of the hybrids.

    Original languageEnglish
    Pages (from-to)310-316
    Number of pages7
    JournalApplied Clay Science
    Volume95
    DOIs
    Publication statusPublished - 2014

    Fingerprint

    Bentonite
    Oxyquinoline
    Complexation
    montmorillonite
    complexation
    Zinc
    zinc
    ligand
    Ligands
    Photoluminescence
    4,4'-bipyridyl
    in situ
    Photoluminescence spectroscopy
    Intercalation
    Ultraviolet spectroscopy
    Powders
    Differential thermal analysis
    Molecular structure

    Keywords

    • 4,4'-Bipyridine
    • 8-Hydroxyquinoline
    • Montmorillonite
    • Solid-solid reaction

    ASJC Scopus subject areas

    • Geochemistry and Petrology
    • Geology

    Cite this

    In situ complexation of 8-hydroxyquinoline and 4,4'-bipyridine with zinc(II) in the interlayer space of montmorillonite. / Pimchan, Patcharaporn; Khaorapapong, Nithima; Sohmiya, Minoru; Ogawa, Makoto.

    In: Applied Clay Science, Vol. 95, 2014, p. 310-316.

    Research output: Contribution to journalArticle

    Pimchan, Patcharaporn ; Khaorapapong, Nithima ; Sohmiya, Minoru ; Ogawa, Makoto. / In situ complexation of 8-hydroxyquinoline and 4,4'-bipyridine with zinc(II) in the interlayer space of montmorillonite. In: Applied Clay Science. 2014 ; Vol. 95. pp. 310-316.
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    abstract = "A series of mixed-ligand zinc complexes was prepared by coordination of 8-hydroxyquinoline and 4,4'-bipyridine to interlayer zinc(II) ion of montmorillonite through solid-solid reactions at room temperature. The intercalation of the ligands and the in situ formation of the mixed-ligand zinc complexes in the interlayer spaces of montmorillonite were confirmed by powder XRD, TG-DTA, as well as FT-IR, UV-Vis and photoluminescence spectroscopies. The intense photoluminescence of zinc(8-hydroxyquinoline)(4,4'-bipyridine)-montmorillonite hybrids appeared at 503nm while photoluminescence of zinc(4,4'-bipyridine)(8-hydroxyquinoline)-montmorillonite hybrids was seen at 511nm. The blue- and red-shifts of the luminescent bands of the hybrids compared with that of zinc(8-hydroxyquinoline)2-montmorillonite (506nm) suggested that the different types and/or microstructure of the mixed-ligand zinc complexes formed in the interlayer spaces of montmorillonite. The photoluminescence intensities of the as-prepared mixed-ligand zinc complexes in montmorillonite decreased in the order of zinc(8-hydroxyquinoline)(4,4'-bipyridine)2-montmorillonite>zinc(8-hydroxyquinoline)(4,4'-bipyridine)-montmorillonite>zinc(4,4'-bipyridine)(8-hydroxyquinoline)2-montmorillonite>zinc(4,4'-bipyridine)(8-hydroxyquinoline)-montmorillonite>zinc(8-hydroxyquinoline)-montmorillonite. The sequence of ligand loading affected the molecular structure and/or packing of the formed complex to control the photoluminescence efficiencies of the hybrids.",
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    T1 - In situ complexation of 8-hydroxyquinoline and 4,4'-bipyridine with zinc(II) in the interlayer space of montmorillonite

    AU - Pimchan, Patcharaporn

    AU - Khaorapapong, Nithima

    AU - Sohmiya, Minoru

    AU - Ogawa, Makoto

    PY - 2014

    Y1 - 2014

    N2 - A series of mixed-ligand zinc complexes was prepared by coordination of 8-hydroxyquinoline and 4,4'-bipyridine to interlayer zinc(II) ion of montmorillonite through solid-solid reactions at room temperature. The intercalation of the ligands and the in situ formation of the mixed-ligand zinc complexes in the interlayer spaces of montmorillonite were confirmed by powder XRD, TG-DTA, as well as FT-IR, UV-Vis and photoluminescence spectroscopies. The intense photoluminescence of zinc(8-hydroxyquinoline)(4,4'-bipyridine)-montmorillonite hybrids appeared at 503nm while photoluminescence of zinc(4,4'-bipyridine)(8-hydroxyquinoline)-montmorillonite hybrids was seen at 511nm. The blue- and red-shifts of the luminescent bands of the hybrids compared with that of zinc(8-hydroxyquinoline)2-montmorillonite (506nm) suggested that the different types and/or microstructure of the mixed-ligand zinc complexes formed in the interlayer spaces of montmorillonite. The photoluminescence intensities of the as-prepared mixed-ligand zinc complexes in montmorillonite decreased in the order of zinc(8-hydroxyquinoline)(4,4'-bipyridine)2-montmorillonite>zinc(8-hydroxyquinoline)(4,4'-bipyridine)-montmorillonite>zinc(4,4'-bipyridine)(8-hydroxyquinoline)2-montmorillonite>zinc(4,4'-bipyridine)(8-hydroxyquinoline)-montmorillonite>zinc(8-hydroxyquinoline)-montmorillonite. The sequence of ligand loading affected the molecular structure and/or packing of the formed complex to control the photoluminescence efficiencies of the hybrids.

    AB - A series of mixed-ligand zinc complexes was prepared by coordination of 8-hydroxyquinoline and 4,4'-bipyridine to interlayer zinc(II) ion of montmorillonite through solid-solid reactions at room temperature. The intercalation of the ligands and the in situ formation of the mixed-ligand zinc complexes in the interlayer spaces of montmorillonite were confirmed by powder XRD, TG-DTA, as well as FT-IR, UV-Vis and photoluminescence spectroscopies. The intense photoluminescence of zinc(8-hydroxyquinoline)(4,4'-bipyridine)-montmorillonite hybrids appeared at 503nm while photoluminescence of zinc(4,4'-bipyridine)(8-hydroxyquinoline)-montmorillonite hybrids was seen at 511nm. The blue- and red-shifts of the luminescent bands of the hybrids compared with that of zinc(8-hydroxyquinoline)2-montmorillonite (506nm) suggested that the different types and/or microstructure of the mixed-ligand zinc complexes formed in the interlayer spaces of montmorillonite. The photoluminescence intensities of the as-prepared mixed-ligand zinc complexes in montmorillonite decreased in the order of zinc(8-hydroxyquinoline)(4,4'-bipyridine)2-montmorillonite>zinc(8-hydroxyquinoline)(4,4'-bipyridine)-montmorillonite>zinc(4,4'-bipyridine)(8-hydroxyquinoline)2-montmorillonite>zinc(4,4'-bipyridine)(8-hydroxyquinoline)-montmorillonite>zinc(8-hydroxyquinoline)-montmorillonite. The sequence of ligand loading affected the molecular structure and/or packing of the formed complex to control the photoluminescence efficiencies of the hybrids.

    KW - 4,4'-Bipyridine

    KW - 8-Hydroxyquinoline

    KW - Montmorillonite

    KW - Solid-solid reaction

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