Synthesis and Characterization of 4-amino-N'-[(1E)-1-(2-hydroxy-6-methyl-4-oxo-4H-pyran-3-yl)ethylidene]benzohydrazide and its Cu(II), Ni(II), Zn(II) and Mn(II) Complexes

  • Chigozie John Onyinye Anarado Department of Pure and Industrial Chemistry, Faculty of Physical Sciences, Nnamdi Azikiwe University, Awka
  • Chinasa Grace Iziga Department of Pure and Industrial Chemistry, Faculty of Physical Sciences, Nnamdi Azikiwe University, Awka
  • Collins Ugochukwu Ibeji Department of Pure and Industrial Chemistry, Faculty of Physical Sciences, University of Nigeria, Nsukka
  • Ilknur Babahan-Bircan Department of Chemistry, Adnan Menderes University, Aydin
  • Burak Coban Department of Chemistry, Faculty of Arts and Sciences, ZonguldakBulentEcevit University, Zonguldak
  • Füsun Cömert Department of Microbiology, Faculty of Medicine, ZonguldakBulentEcevit University, Zonguldak
  • Charity Ebere Anarado Department of Pure and Industrial Chemistry, Faculty of Physical Sciences, Nnamdi Azikiwe University, Awka
DOI: https://doi.org/10.20884/1.jm.2023.18.2.8186

Abstract

New benzohydrazone compound, 4-amino-N'-[(1E)-1-(2-hydroxy-6-methyl-4-oxo-4H-pyran-3-yl)ethylidene] benzohydrazide (HL1) and its Cu(II), Ni(II), Zn(II) and Mn(II) complexes were synthesized. The structures of HL1 and its complexes were elucidated by elemental analysis and IR, UV-Vis, 1H and 13C NMR spectroscopy and mass spectrometry. The infrared spectral data of the complexes revealed that HL1 coordinated with the metal ions through azomethine nitrogen, enolic oxygen and amide carbonyl oxygen atoms, hence, HL1 behaves as a monobasic tridentate ligand. UV-Vis data revealed that Zn(II) and Mn(II) complexes adopted octahedral geometry, while Cu(II) and Ni(II) complexes had five-coordinate and square-planar geometries respectively. The mass spectra data and elemental analysis values are in accordance with the calculated values for the suggested molecular formula of the complexes, a confirmation of the 1:1 ligand to metal stoichiometry in case of Cu(II) complex and 2:1 ligands to metal stoichiometry in case of the other complexes.

Published
2023-07-10
How to Cite
ANARADO, Chigozie John Onyinye et al. Synthesis and Characterization of 4-amino-N'-[(1E)-1-(2-hydroxy-6-methyl-4-oxo-4H-pyran-3-yl)ethylidene]benzohydrazide and its Cu(II), Ni(II), Zn(II) and Mn(II) Complexes. Molekul, [S.l.], v. 18, n. 2, p. 307-320, july 2023. ISSN 2503-0310. Available at: <https://jos.unsoed.ac.id/index.php/jm/article/view/8186>. Date accessed: 04 apr. 2025. doi: https://doi.org/10.20884/1.jm.2023.18.2.8186.
Citation Formats
Issue
Vol 18 No 2 (2023)
Section
Articles

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