Two novel fluorescent calix[4]arene derivatives with benzoazole units in 1,3-alternate conformation for selective recognition to Fe~(3+) and Cr~(3+) |
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| Authors: | He Wen Wang Ya Qing Feng Chen Chena Jin Qiang Xuea a School of Chemical Engineering Technology Tianjin University Tianjin China b College of Chemistry Applied Chemistry Huanggang Normal University Huanggang China |
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| Institution: | a School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China;b College of Chemistry and Applied Chemistry, Huanggang Normal University, Huanggang 438000, China |
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| Abstract: | Two novel fluorescent calix4]arene derivatives 1a and 1b with benzoxazole or benzothiazole units in 1,3-alternate conformation have been synthesized and characterized by IR,~1H NMR,~(13)C NMR and MS.Their complexation properties to different heavy and transition metal ions have been studied by UV-vis spectroscopy and fluorescence spectrometer.Compounds 1a and 1b show selective recognition to Fe~(3+) and Cr~(3+). |
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| Keywords: | Calixarenes Benzoxazole Benzothiazole Imino Recognition |
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