A Hg2+ selective fluorescent chemosensor based on rhodamine B thiohydrazide and its application in bioimaging†
Abstract
A rhodamine B thiohydrazide-based fluorescent turn-on chemosensor (RN2) for Hg2+ was designed and described. RN2 exhibited very high sensitivity and selectivity towards Hg2+ over other metal ions. Due to the opening of the spiro ring in