ADVANCED JOURNAL OF CHEMISTRY RESEARCH
Integrity Research Journals
Model: Open Access/Peer Reviewed
DOI: 10.31248/AJCR
Start Year: 2022
Email: ajcr@integrityresjournals.org
Synthesis, characterization and biological profiles of Schiff base aldimines derived from N-N1-Diphenyl-O-Pyrol-6-Methyleneacetate and its Cu2+ and Fe2+ complexes
https://doi.org/10.31248/AJCR2023.006 | Article Number: 91EECDD32 | Vol.1 (2) - August 2023
Received Date: 11 May 2023 | Accepted Date: 09 June 2023 | Published Date: 30 August 2023
Authors: Iorungwa, M. S.* , Atagher, J. A. , Shimaibo, P. T. and Nanev, J. D.
Keywords: 2-phenylglycinemethyesterhydrochloride, Esculentum spp., Schiff base, Meloidogyne incognita, pyrol-2-carbaldehyde.
The aldimine ligand N-N1-diphenyl-o-pyrol-6-methyleneacetate (PPA) was prepared by a condensation reaction between 2-phenylglycinemethyesterhydrochloride and pyrol-2-carbaldehyde which was used to synthesize transition metal complexes of Cu(II) and Fe(II) employing the microwave assisted technique. The ligand and complexes were characterized by FTIR, UV, XRD, and magnetic susceptibility measurements. Spectral results which had PPA – Cu (46.619 cm-1) and PPA – Fe (43.859 cm-1) revealed complexation arising from the nitrogen of the azomethine group. The UV and magnetic susceptibility confirmed the probable geometries of Cu(II) and Fe(II) complexes to be octahedral with magnetic moments of 1.66 and 1.11 B.M respectively. Crystallographic diffraction pattern revealed the unit cell dimension of a (7.9Å), b(7.4Å), c(7.0Å), α(90o), β(90o), γ(90o) for Fe and a(4.3 Å), b(3.8Å), c(4.46Å), α(90o), β(90o), γ(90o) for Cu(II) aligning with orthorhombic crystal system. Molar conductance measurement of 717 and 229 Ω-1cm-2mol-1 PPA – Cu and PPA – Fe respectively indicated that the complexes are electrolytic in nature. The metal complexes showed higher inhibiting potential compared to the free ligand when tested against the root knot nematode Meloidogyne incognita present in the crop Esculentum spp implying that the complexes can be used as nematicides.
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