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Saeid Amani Komaei

Saeid Amani Komaei

Academic rank: Professor
ORCID:
Education: PhD.
ScopusId:
Faculty: Science
Address: Arak University
Phone:

Research

Title
Synthesis and Spectroscopic Studies of an AzoAzomethine Receptor for Naked-Eye Detection of Hydrogen Carbonate Ions in Aqueous Media
Type
JournalPaper
Keywords
Hydrogen carbonate; chemosensor; azoazomethine; naked-eye detection of HCO3
Year
2019
Journal Polycyclic Aromatic Compounds
DOI
Researchers fatemeh naderi ، Masoumeh Orojloo ، Saeid Amani Komaei

Abstract

ABSTRACT In this research, we have designed and synthesized a new receptor, namely 4-((E)-(2,5-dichlorophenyl)diazenyl)-2-((E)-((4-hydroxyphenyl)imino)methyl)- phenol (L) for detection of hydrogen carbonate anions by naked-eye and UV–Vis spectroscopy. This compound revealed visual changes with HCO3  anion in aqueous media. No detectable color changes were observed upon the addition of any other tested anions. The sensitivity and selectivity of the receptor (L) to hydrogen carbonate anion was investigated by UV–Vis spectroscopy and 1H-NMR titration methods. The receptor (L) had a detection limit of 2.18107mol L1 toward HCO3  anions. Therefore, this compound was highly suitable for detection of hydrogen carbonate anion in aqueous solutions. The stability constant of the receptor (L)-HCO3  complex was determined by Benesi–Hildebrand plot method. The stoichiometry of this complex was determined (receptor (L)/anion ¼ 1:1) by Job’s plot technique. Overall, the designed chemosensor can be used for quick detection of hydrogen carbonate anions within the basic pH range.