CAJ | 학술논문

合成了一个新型香豆素/Betti碱主体化合物1,并对其进行了结构表征.在乙腈/水溶液中进行主体1和碱金属、碱土金属相关离子(Li+,Na+,K+,Rb+,Cs+,Be2+,Mg2+,Ca2+,Sr2+,Ba2+)的相互作用研究时,发现仅Rb+,Ba2+离子对主体1有敏感的紫外光谱及荧光光谱响应,而其它的碱金属、碱土金属离子无敏感性光响应.紫外光谱显示,Rb+,Ba2+离子使主体1产生明显的红移(ε=4.66×102L·(mol·cm)-1,△=91 nm),肉眼可观察到明显的由浅黄向橙红色的颜色变化,并使主体1的荧光光谱发生一定程度的猝灭.
합성료일개신형향두소/Betti감주체화합물1,병대기진행료결구표정.재을정/수용액중진행주체1화감금속、감토금속상관리자(Li+,Na+,K+,Rb+,Cs+,Be2+,Mg2+,Ca2+,Sr2+,Ba2+)적상호작용연구시,발현부Rb+,Ba2+리자대주체1유민감적자외광보급형광광보향응,이기타적감금속、감토금속리자무민감성광향응.자외광보현시,Rb+,Ba2+리자사주체1산생명현적홍이(ε=4.66×102L·(mol·cm)-1,△=91 nm),육안가관찰도명현적유천황향등홍색적안색변화,병사주체1적형광광보발생일정정도적졸멸.
A coumarin-Betti base coupling compound 1 was synthesized and characterized with selective optical sensitivity to Rb+ and Ba2+ over other alkali and alkaline earth metal cations such as Li+, Na+, K+, Cs+,Be2+, Mg2+, Ca2+ and Sr2+ in acetonitrile/water solution. It has found that Rb+ and Ba2+ induce an obvious red-shift(ε=4.66×102 L·(mol·cm)-1,△=91 nm) in absorption spectra and quench the fluorescence emission of 1. The red-shift in absorption spectra generates an obviously colorimetric comparison phenomenon from light yellow to orange.