期刊文献+

对称萘酚亚胺化合物的pH荧光效应及对阴离子的识别作用

Recognition of Anion and pH Fluorescence Effect of the Symmetry Naphtholimine
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摘要 合成了一种含萘酚结构的对称亚胺主体化合物。通过对其与阴离子物种之间相互作用的研究,观察到在水溶液中,随着体系pH值的升高,主体荧光强度增强并且最大发射波长红移。其荧光性能与pH存在着强烈的依赖关系,具有明显的pH荧光"开-关"作用。同时,在乙腈溶液中,该结构对F-有较强的荧光选择响应,对Ac-响应稍弱,而对其它阴离子的选择响应较差。结合所观察到的实验现象,对实验结果进行了分析和讨论,并初步探讨了该化合物对H+、OH-、F-、Ac-的识别机理。 A symmetry naphtholimine compound was synthesized. It was found that its fluorescence intensity increased and the emission wave number showed a red-shift with the rising of the pH value. It was to say that its fluorescence behavior had a greatly correlation to the pH, and the naphtholimine had a pH fluorescence "on-off " ability in aqueous. Moreover, it was also shown that it had a strong fluorescence selective recognition with F- , a weak recognition with Ac- , and no selectivity with other negatine ions in CH3CN. The recog- nition mechanism based on the different interreaction of naphtholimine and every anions was discussed.
出处 《分析化学》 SCIE EI CAS CSCD 北大核心 2008年第4期504-508,共5页 Chinese Journal of Analytical Chemistry
基金 北京科技大学重点基金(No.20060604990)资助项目
关键词 氢离子 荧光探针 荧光“开-关” 阴离子 识别 Hydrogen ion fluorescence chemosensor, fluorescence "on-off", anions, recognition
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