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中文摘要：
通过Click化学反应合成了一种含有喹啉基和三唑基的开链冠醚,考察和比较了主体化合物对镉等金属离子的荧光传感和选择性键合行为,并通过荧光光谱和核磁共振等手段研究了溶剂对荧光传感行为的影响.
英文摘要：
Fluorescent chemosensors based on supramolecular interactions are receiving increasing attention due to their potential in analytical chemistry and environmental monitoring.Podands possessing 8-hydroxyqui-nolino and triazole groups were synthesized via ＂Click chemistry＂ reaction.Their spectrometric behavior and the binding ability toward metal ions were investigated by fluorescence spectrum and NMR spectroscopy.With good water solubility,chemosensors 1 and 2 exhibited a distinct switch-on fluorescence response to Cd2＋ and Zn2＋ over other metal ions,according to which the chemosensory function are realized.Significantly,spectrophotometric studies also demonstrated that the proportion of methanol in aqueous solution greatly influent the selectivity and fluorescent emission ability of host compound.Additionally,1H NMR analysis revealed that the 8-hydroxyquinolino and the triazole group,as well as the ether chains,were involved in the bonding interactions with the ions.
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