Silver Ion-Induced Reversible Turn-Off Fluorescence in Redox States of Poly-o-phenylenediamine
K. Rohini Das,
M. Jinish Antony
Abstract:In the present work, we report the sensing of silver ions by yellow fluorescence turn-off in poly-o-phenylenediamine (POPD) solution via an oxidative mechanism. Poly-o-phenylenediamine was synthesized by chemical oxidative polymerization using ferric chloride as an oxidizing agent in ethanol solvent. Proton nuclear magnetic resonance spectra of the POPD revealed two types of protons corresponding to benzenoid and quinonoid structures in semioxidized POPD. Fourier transform infrared (FT-IR) spectra confirmed th… Show more
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.