摘要
合成了具有锥形构象的含氟功能基团的杯芳烃衍生物1~3,并用单晶X射线衍射和核磁共振证实了其锥形构象。在混合溶剂中,研究了杯芳烃衍生物1~3对多种金属离子的识别行为。测试了化合物1~3的紫外-可见吸收光谱和荧光发射光谱,结果显示铜离子对化合物1~3具有明显的荧光猝灭特性,而其它金属离子(如Na~+,K~+,Cs~+,Mg~(2+),Ca~(2+),Ba~(2+),Fe~(3+),Cd~(2+),Mn~(2+),Co~(2+),Ni~(2+),Zn~(2+))对化合物1~3的紫外-可见吸收光谱和荧光发射强度无显著的影响,表明化合物1~3对铜离子的识别具有高选择性。
The fluorine derivatives of calix[4]arene, C_(64)H_(52)F_(12)O_4(1), C_(60)H_(52)F_4O_4(2), C_(68)H_(48)F_(24)O_4(3), were synthesized,and their cone conformations were proved by single crystal X-ray diffraction and1 H NMR spectroscopy. Their recognition behaviors were evaluated towards a variety of metal ions in mixed solvent. The UV-Vis absorption and fluorescence spectroscopy were measured and confirmed that copper ions resulted in fluorescence quenching of compounds 1~3, while other ions such as Na~+, K~+, Cs~+, Mg~(2+), Ca~(2+), Ba~(2+), Fe~(3+), Cd~(2+), Mn~(2+), Co~(2+), Ni~(2+), Zn~(2+)exerted hardly significant impact on the UV-Vis absorption and fluorescence intensity of 1~3, exhibiting high selectivity of compounds 1~3 to copper ions.
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