A naphthyl thiourea‐based effective chemosensor for fluorescence detection of Ag<sup>+</sup> and Zn<sup>2+</sup>
Yuna Seo, Soyoung Park, Gyeongjin Kim, Minji Lee, Cheal Kim
Abstract
Abstract A naphthyl thiourea‐based effective chemosensor HNC , ( E )‐2‐(2‐hydroxy‐3‐methoxybenzylidene)‐ N ‐(naphthalen‐1‐yl)hydrazine‐1‐carbothioamide, was synthesized. HNC showed quick responses toward Ag + and Zn 2+ through marked fluorescence turn‐on in different solvent conditions, respectively. Binding proportions of HNC to Ag + and Zn 2+ were found to be 2:1 and 1:1, respectively. Detection limits of HNC for Ag + and Zn 2+ were calculated as 3.82 and 0.21 μM. Binding processes of HNC for Ag + and Zn 2+ were represented using Job’s plot, DFT, 1 H NMR titration, and ESI‐MS.
Topics & Concepts
ThioureaChemistryFluorescenceTitrationNuclear chemistryZincSolventInorganic chemistryOrganic chemistryQuantum mechanicsPhysicsMolecular Sensors and Ion DetectionMetal complexes synthesis and propertiesElectrochemical Analysis and Applications