Two new indole derivatives as anion receptors for detecting fluoride ion

Two new compounds (1 and 2) based on indole were successfully synthesized and characterized. They display highly selective response to F− in aqueous DMSO medium and pure DMSO with remarkable color and fluorescent changes. Therefore, both receptors may serve as colorimetric sensors for F− by visual detection.

Two new compounds 1 and 2 based on indole were successfully synthesized and characterized. They display an excellent selectivity toward the detection of F− in aqueous DMSO medium or pure DMSO with clear color changes and remarkable fluorescent changes based on photoinduced electron transfer (PET).Figure optionsDownload as PowerPoint slide