V1I9P12

Synthesis and Characterization of Zinc(II) Complex Using Oxyquinoline

Yetunde Oyinkansola Adepoju^1*, Taiwo Bakare-Abidola², Tella Clement Adedibu³, Sanni Kareem Olamide⁴, Adelabu Adenike M⁵

Abstract

This study explores the synthesis of a zinc(II) complex by reacting zinc sulfate with oxyquinoline as a ligand. The synthesis was carried out using the reflux method, which resulted in the formation of a stable zinc-oxyquinoline complex. The synthesized complex was characterized by melting point determination, solubility testing, Fourier Transform Infrared (FTIR) spectroscopy, and elemental analysis. The solubility test showed that the complex was soluble in ethanol and methanol, slightly soluble in DMSO, and insoluble in water. The melting point of the complex was observed to be 381°C, indicating a stable structure. FTIR analysis revealed key functional groups, such as C=N and O-H stretches, confirming the coordination of the zinc ion with the ligand. Elemental analysis showed close agreement with the theoretical values for carbon, hydrogen, and nitrogen, further supporting the proposed structure of the zinc complex. This work highlights the successful synthesis of the zinc complex and provides a basis for future studies on metal-ligand coordination.

Keywords:

Zinc(II) Complex, Oxyquinoline, Synthesis, Reflux Method, FTIR Spectroscopy, Elemental Analysis, Coordination Chemistry, Solubility Test, Melting Point, Coordination Bond