Eu chelate with phenanthroline derivative gives selective emission responses to Cu(II) ions |
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Authors: | Lijun Ma Chaoliang Tan |
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Affiliation: | School of Chemistry and Environment, South China Normal University, Guangzhou 510006, PR China |
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Abstract: | Two novel ternary europium(III) complexes (Eu-1 and 2) based on modified phenanthroline ring have been successfully synthesized and give characteristic purple-red emissions. The complex with 4-substituted carboxyl group has been proved to act as a selective luminescence quencher for copper(II) ions, as shown by the “on/off” switch phenomenon and the smart responsive changes in the UV-vis region (detection limit up to 0.5 μM). The preliminary data imply that Eu-1 could be applicable as a potential fluorescent sensor for detection of copper(II) ions. |
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Keywords: | Europium Copper Luminescence Switch Sensor |
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