Department of Organic Chemistry, Indian Institute of Science, Bangalore 560 012, India.
J Org Chem. 2011 Oct 21;76(20):8215-22. doi: 10.1021/jo201290a. Epub 2011 Sep 29.
Probes based on anthra[1,2-d]imidazole-6,11-dione were designed and synthesized for selective ion sensing. Each probe acted as strong colorimetric sensors for fluoride and cyanide ions and exhibited intramolecular charge transfer (ICT) band, which showed significant red-shifts after addition of either the F(-) or CN(-) ion. One of the probes (2) showed selective colorimetric sensing for both cyanide and fluoride ions. In organic medium, 2 showed selective color change with fluoride and cyanide, whereas in aqueous organic medium it showed a ratiometric response selectively for cyanide ion.
基于蒽[1,2-d]咪唑-6,11-二酮的探针被设计和合成用于选择性离子传感。每个探针都可以作为氟离子和氰离子的强比色传感器，并表现出分子内电荷转移（ICT）带，在加入 F(-)或 CN(-)离子后，ICT 带显示出明显的红移。其中一个探针（2）对氰化物和氟化物都表现出选择性的比色传感。在有机介质中，2 对氟化物和氰化物表现出选择性的颜色变化，而在水有机介质中，它对氰化物离子表现出比率响应的选择性。
