| 香豆素/Betti碱主体合成及其对铷、钡离子的选择性响应(英文) |
| Coumarin/Betti Base Host: Synthesis and Optical Sensitivity to Rubidum, Barium Cations |
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| 摘要: 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=4.66×102 L·(mol·cm)-1，Δ=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。 |
| 关键词: 香豆素 Betti 碱 主体 合成 Rb+，Ba2+离子 |
| 基金项目: |
| Abstract: 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, Δ=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. |
| Keywords: coumarin betti base synthesis Rb+-Ba2+ cation |
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| 杨运旭,戴 星,周花蕾,董逸帆,王兴锋.香豆素/Betti碱主体合成及其对铷、钡离子的选择性响应(英文)[J].无机化学学报,2010,26(6):1013-1018. |
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