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In situ complexation of 8-hydroxyquinoline and 4,4′-bipyridine with zinc(II) in the interlayer space of montmorillonite
https://orcid.org/0000-0003-3263-4019
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.
Graphical abstract Display Omitted
Highlights Coordination polymers of mixed-ligand zinc complexes were prepared in clay minerals Sequence of loading ligands, molar ratios affected the nanostructure and/or packing The hybrids might be possibly used as an emitting material in optoelectronic devices
In situ complexation of 8-hydroxyquinoline and 4,4′-bipyridine with zinc(II) in the interlayer space of montmorillonite
https://orcid.org/0000-0003-3263-4019
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.
Graphical abstract Display Omitted
Highlights Coordination polymers of mixed-ligand zinc complexes were prepared in clay minerals Sequence of loading ligands, molar ratios affected the nanostructure and/or packing The hybrids might be possibly used as an emitting material in optoelectronic devices
In situ complexation of 8-hydroxyquinoline and 4,4′-bipyridine with zinc(II) in the interlayer space of montmorillonite
https://orcid.org/0000-0003-3263-4019
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.
Graphical abstract Display Omitted
Highlights Coordination polymers of mixed-ligand zinc complexes were prepared in clay minerals Sequence of loading ligands, molar ratios affected the nanostructure and/or packing The hybrids might be possibly used as an emitting material in optoelectronic devices
In situ complexation of 8-hydroxyquinoline and 4,4′-bipyridine with zinc(II) in the interlayer space of montmorillonite
Pimchan, Patcharaporn (Autor:in) / Khaorapapong, Nithima (Autor:in) / Sohmiya, Minoru (Autor:in) / Ogawa, Makoto (Autor:in)
Applied Clay Science ; 95 ; 310-316
18.04.2014
7 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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