SPECTROSCOPIC CHARACTERIZATION OF SCHIFF BASE METAL (II) COMPLEXES DERIVED FROM 2-HYDROXYBENZALDEHYDE AND 1,8-DIAMINONAPHTHALENE

Authors

  • Esther Ishaya Ville
  • Ibrahim Muhammad Wakil
  • Hussaini Barma Adam
  • Hussaini Garba
  • Na’omi Piyinkir Ndahi
  • Mohammed Baba Fugu
  • Bintu Modu Kagu

Abstract

Schiff base ligand (HL) derived from 2-hydroxybenzaldehyde with 1,8 diaminonaphthalene was synthesized and characterized by elemental analysis, melting point and IR. The elemental analysis revealed a 1:2 molar ratio (amine: aldehyde) for the ligand. IR spectra showed the azomethine (>C=N) bond at around 1624 cm-1 in the ligand. The Schiff base (HL) is coordinated with Hg(II), Pb(II), and Cd(II) to form the corresponding metal complexes. These complexes were characterized by elemental analysis, melting point, solubility, conductivity, Infra-Red, and electronic spectra. The purity and composition of both the Schiff base and the metal complexes were established by elemental analysis. The complexes showed various colours ranging from brown to dark brown and grey.

Keywords: Spectroscopy; Complexes; 2-hydroxybenzaldehyde; 1,8-diaminonaphthalene 

Author Biographies

Esther Ishaya Ville

*1Department of Pure and Applied Chemistry, Faculty of Science, University of Maiduguri, Borno State, Nigeria.

Ibrahim Muhammad Wakil

*1Department of Pure and Applied Chemistry, Faculty of Science, University of Maiduguri, Borno State, Nigeria.

Hussaini Barma Adam

2Department of Chemistry, Faculty of Science, Borno State University, Maiduguri. Borno State, Nigeria.

Hussaini Garba

*1Department of Pure and Applied Chemistry, Faculty of Science, University of Maiduguri, Borno State, Nigeria.

Na’omi Piyinkir Ndahi

*1Department of Pure and Applied Chemistry, Faculty of Science, University of Maiduguri, Borno State, Nigeria.

Mohammed Baba Fugu

*1Department of Pure and Applied Chemistry, Faculty of Science, University of Maiduguri, Borno State, Nigeria.

Bintu Modu Kagu

2Department of Chemistry, Faculty of Science, Borno State University, Maiduguri. Borno State, Nigeria.

 

 

DOI: https://doi.org/10.5281/zenodo.8414300

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Published

2023-10-06