Turn-On Fluorescence Detection of Cyanide in Water: Activation of Latent Fluorophores through Remote Hydrogen Bonds That Mimic Peptide β-Turn Motif
作者:Junyong Jo、Dongwhan Lee
DOI:10.1021/ja907056m
日期:2009.11.11
A molecular probe was prepared that selectively responds to cyanide in aqueous solutions by fluorescence enhancement. Using the peptide beta-turn as a structural template, we designed a series of diphenylacetylene derivatives in which the pi-conjugated backbone was functionalized with an aldehyde group to render the molecule nonfluorescent. The N-H...O hydrogen bond across the 2,2'-functionalized diphenylacetylene