Colorimeric and fluorescence ON–OFF probe for acetate anion based on thiourea derivative: Theory and experiment
作者:Xuefang Shang、Shuanbao Tian、Nankai Xi、Yue Li、Dong liang、Yun Liu、Zhenya Yin、Jinlian Zhang、Xiufang Xu
DOI:10.1016/j.saa.2012.11.027
日期:2013.2
fluorescent anion probes have been synthesized. Results indicated the probe 1 containing p-NO2 group showed the strongest binding ability for AcO− among the anions tested (F−, AcO−, H2PO4-, Cl−, Br−, I−), which was not influenced by the existence of other anions. The interaction of host–guest was accompanied with a dramatic color change from colorless to orange. However, the addition of various anions did
基于硫脲部分,已合成了三种比色和荧光阴离子探针。结果表明探头1的含p -NO 2组显示出最强的结合能力为ACO -测试的阴离子(F间-,ACO - ,H2PO4--,氯- ,溴- ,我- ),它完全不会受到其它阴离子的存在的影响。主客之间的相互作用伴随着从无色到橙色的显着颜色变化。然而,各种阴离子的添加并未引起包含o,m- NO 2基团的探针(2和3)的明显光谱响应。理论研究表明,最高LUMO的电子跃迁引起了1阴离子的UV-vis光谱中的红移现象。