4,7-Diaryl indole-based fluorescent chemosensor for iodide ions

Simple and selective indole based fluorescent sensors for iodide anions are reported. A series of 4,7-diaryl indole derivatives (DAIs) are designed and synthesized using Suzuki coupling. These DAIs shows significant changes in UV-vis and fluorescent intensity only with addition of iodides and not with other anions. The ability of these DAIs to function as selective iodide chemosensor is reported.