Cyclometalated platinum(II) complex with C^N^N tridentate ligand as sensitizer for lanthanide luminescence |
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Authors: | Kun-Jiao Chen Hai-Bing Xu Li-Yi Zhang Zhong-Ning Chen |
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Affiliation: | aState Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China |
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Abstract: | The preparation, characterization and photophysical properties of heterobinuclear complexes {Pt(C^N^N)(CCbpy)}Ln(hfac)3 (C^N^N = 2-(6-(naphthalen-3-yl)-4-phenylpyridin-2-yl)pyridine; HCCbpy = 5-ethynyl-2,2′-bipyridine; Ln = Nd, Eu, Yb; hfac = hexafluoroacetylacetonate) are described. With excitation at 390 λex 500 nm which is the MLCT/LLCT absorption region of the Pt(C^N^N)(CCbpy) chromophore, lanthanide luminescence is successfully attained by Pt → Ln energy transfer from the platinum(II) antenna chromophore to the lanthanide center across the bridging CCbpy ligand. |
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Keywords: | Energy transfer Lanthanide Luminescence Platinum Sensitizer |
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