Retracted Article: Hydrogen sulfate ion sensing in aqueous media based on a fused pyrimido benzothiazole derivative†
Abstract
A sensitive and selective receptor 3-cyano-4-imino-2-methylthio-4H-pyrimido[2,1-b][1,3]benzothiazole (SVK-1) bearing a fused pyrimido benzothiazole structure was developed for the recognition of HSO4β anions. UV-vis and fluorescence emission spectroscopy were employed for the recognition for HSO4β over other anions such as Clβ, Brβ, Iβ, Fβ, AcOβ, H2PO4β, ClO4β and NO3β in an aqueous medium.