Novel Nano Zn+2-Compound from LA Ligand as an Acid-Base Indicator: Synthesis, Characterization, pH Sensor, and Fluorescent Study

Wafaa Waleed AL-Qaysi; Alyaa Khider Abbas

doi:10.24996/ijs.2023.64.11.6

Authors

Wafaa Waleed AL-Qaysi Department of Chemistry, College of Science, University of Baghdad, Al-Jadriya Campus, 10071 Baghdad, Iraq https://orcid.org/0000-0003-4559-3041
Alyaa Khider Abbas Department of Chemistry, College of Science, University of Baghdad, Al-Jadriya Campus, 10071 Baghdad, Iraq https://orcid.org/0000-0002-8400-0926

DOI:

https://doi.org/10.24996/ijs.2023.64.11.6

Keywords:

Adenine azo ligand, Fluorescent, pH sensors, Zinc complexes

Abstract

The main goal of our research is to synthesize novel nano Zn²⁺complex with the 8-(2-(dansyl chloride)azo) adenine (LA) ligand as a pH sensor because of its advantageous properties, obtained from a single molecule. The Zn²⁺- LA complex was based on the production of an intensely dark purple-colored substance with λ_max at 552 nm. Molar ratio of Zn²⁺- LA complex is a 1:2 in aqueous buffer. The optimum concentration (0.3) mM, pH (2-5.5), and time (0-3) hr at pH=5.5, that in the studies followed Lambert-law Beer'