학술논문
Synthesis, Characterization, Analytical Application, and Theoretical Studies of a Schiff Base, (E)-2-(2-aminophenylthio)-N-(Thiophen-2-yl-methylene) Benzenamine
Document Type
Original Paper
Source
Journal of Fluorescence. :1-11
Subject
Language
English
ISSN
1053-0509
1573-4994
1573-4994
Abstract
In this study, a new Schiff base, (E)-2-(2-aminophenylthio)-N-(thiophen-2-yl-methylene) benzenamine was synthesized for selective detection of Hg2+ . This Schiff base was characterized by proton nuclear magnetic resonance (1 HNMR), carbon-13 nuclear magnetic resonance (13 CNMR), and Fourier-transform infrared (FTIR) spectroscopy. Binding interaction between (E)-2-(2-aminophenylthio)-N-(thiophen-2-yl-methylene)benzenamine and various metal ions has been studied by UV–Vis spectroscopic measurements and shows promising coordination towards Hg2+ and almost no interference from other metal ions (Ag+ , Mn2+ , Fe3+ , Al3+ , Co2+ , Ni2+ , Cu2+ , Zn2+ , Cd2+ , Fe2+ and Cr3+ ).This Schiff base exhibiting detection limit of 3.8 × 10− 8 M. The Schiff base newly synthesized in this study was successfully applied to the determination of Hg2+ in water samples. In addition to the experimental study, a theoretical study was conducted using Gaussian 09 program to support the experimental findings. FTIR, NMR, bond angle, bond length, torsional angles, and structural approximation were studied using theoretical consideration.