Synthesis and fluorescent properties of a novel europium(Ⅲ) complex with terpyridine-capped poly(ethylene glycol)
查看参考文献18篇
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文摘
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Terpyridine-capped poly(ethylene glycol) (PEG) was synthesized as a novel polymeric ligand and rare earth complex was prepared from Eu(NO_3)_3 and the telechelic macromolecules. The structure of the complex was characterized by ~1H NMR, FT-IR, UV-vis and fluores-cence spectroscopy. Strong fluorescent emission of the complex was observed at 593 and 616 nm upon the excitation of 300 nm. The fluo-rescent emission was quenched upon addition of trace amount of diethyl chlorophosphate (DCP). And the observed K_(sv) values for DCP were measured to be 0.568×10~3 and 0.89×10~3 L/mol for quenching at 593 and 616 nm, which indicated the detection limit for DCP was about 0.014 mmol/L. These results showed that the terpyridine-lanthanide complex could be an effective chemosensor with a potential application in the detection of organophosphates. |
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来源
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Journal of Rare Earths
,2012,30(7):705-708 【核心库】
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DOI
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10.1016/s1002-0721(12)60115-x
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关键词
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Terpyridine
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poly(ethylene glycol) (PEG)
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europium complex
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fluorescent properties
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organophosphates
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rare earths
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地址
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1.
Department of Chemical Engineering, Laboratory for Advanced Materials, Tsinghua University, Beijing, 100084
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Office of Scientific Research & Development, Tsinghua University, Beijing, 100084
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语种
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英文 |
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ISSN
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1002-0721 |
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学科
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化学 |
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基金
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Supported by Research Foundation of the General Armament Department
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文献收藏号
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CSCD:4596020
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参考文献 共
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