Title: Near-infrared photoluminescence of lanthanide complexes containing the hemicyanine chromophore
Authors: Van Deun, Rik ×
Nockemann, Peter
Parac-Vogt, Tatjana
Van Hecke, Kristof
Van Meervelt, Luc
Görller-Walrand, Christiane
Binnemans, Koen #
Issue Date: 2007
Publisher: Pergamon-elsevier science ltd
Series Title: Polyhedron vol:26 issue:18 pages:5441-5447
Abstract: The near-infrared luminescence properties of three (E)-N-hexadecyl-N',N'-dimethylamino-stilbazolium tetrakis(1-phenyl-3-methyl-4-benzoyl-5-pyrazolonato) lanthanide(III) complexes are described. These three complexes, containing trivalent neodymium, erbium and ytterbium, respectively, show near-infrared luminescence in acetonitrile solution upon UV irradiation. Luminescence decay times have been measured. The complexes consist of a positively charged hemicyanine chromophore with a long alkyl chain and a tetrakis(pyrazolonato) lanthanide(III) anion. Because of the absence of an alpha-hydrogen atom in the pyrazolonato ligands, and because of the saturation of the coordination sphere by four bidentate ligands, the luminescence properties are enhanced when compared to, e.g. quinolinate complexes.
ISSN: 0277-5387
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Molecular Design and Synthesis
Molecular Imaging and Photonics
Biochemistry, Molecular and Structural Biology Section
× corresponding author
# (joint) last author

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