Selectively detecting trace picric acid by reduced perylene bisimide with POSS substituents and their nanoaggregates†
Abstract
Reduced perylene bisimides (PBIs) with two substituents of polyhedral oligomeric silsesquioxane (POSS) are designed and synthesized for rapid and selective detection of picric acid in THF solution. Nanoaggregates of the reduced PBI show fluorescence that is also sensitive to the concentration change of picric acid.