论文部分内容阅读
经六步反应合成了新型杯[4]芳烃衍生物,其中杯[4]芳烃上缘的芘基作为荧光团,下缘的四个乙酯基作为离子载体,该化合物的结构经核磁和质谱鉴定.通过荧光光谱研究了主体化合物对碱、碱土金属离子的键合行为.结果表明主体化合物能够高选择性的识别钠离子,稳定常数为2190L?mol?1.当加入钠离子时,芘基的excimer峰下降,同时monomer峰逐渐上升,而其它碱、碱土金属离子的加入没有导致主体化合物荧光光谱的变化.因此,该新型的杯[4]芳烃衍生物可以作为钠离子的荧光传感器.
Novel calix [4] arene derivatives were synthesized via six steps. The pyrene groups on the upper edge of the calix [4] arene as the fluorophore and the four ethyl ester groups on the lower edge as the ionophore. The structure of the calix [4] The results showed that the host compounds can recognize sodium ions with high selectivity and the stability constant is 2190L mol-1. When adding sodium ions, Of the excimer peak decreased while the peak of monomer increased gradually, while the addition of other alkali and alkaline earth metal ions did not lead to the change of the fluorescence spectrum of the host compound.Thus, the novel calix [4] arene derivative can be used as the fluorescence sensor of sodium ion.