Two coumarin formhydrazide compounds as chemosensors for copper ions |
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| Affiliation: | 1. School of Material Science and Engineering, Shandong Provincial Key Laboratory of Preparation and Measurement of Building Materials, University of Jinan, Jinan 250022, Shandong, China;2. State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, Shandong, China;1. Laboratory of Mineral Processing, Department of Mining Engineering, Sahand University of Technology, Tabriz, Iran;2. Department of Chemistry, Faculty of Basic Sciences, University of Maragheh, P.O.B. 55136-553, Maragheh, Iran |
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| Abstract: | Two coumarin formhydrazide compounds as chemosensors for copper ions have been synthesized. The compounds can recognize copper ion with obvious absorption spectral change and fluorescence decrease in aqueous solution. The detection limit of the compound with terminal diethylamino group to Cu2 + in aq.-HEPES buffer acetonitrile (3:7, v/v, pH = 7.4) with fluorescence spectra as detected signal is 0.00041 μM. One carbonyl and amine group in one sensor molecule may complex with one copper ion to form 1:1 complex. |
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