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VOL. 10, ISSUE 1 (2026)
Microwave-assisted synthesis, characterization, and computational studies of 3d metal complexes with a Schiff base derived from with 4-aminoantipyrine
Authors
Priti Shrivastava, Dinesh Kumar Mishra, Samit Kumar, Awanish Kumar Patel, Ashish Sohgaura
Abstract
A novel series of transition metal complexes of cobalt(II), nickel(II),
and copper(II) with a Schiff base ligand derived from 2-pyridinecarboxaldehyde
and 4-aminoantipyrine was synthesized under microwave-assisted conditions. The
microwave method afforded high yields in significantly reduced reaction times
compared to conventional heating. The ligand and metal complexes were
characterized by elemental analysis, FT-IR spectroscopy, UV-Vis spectroscopy,
mass spectrometry, and thermal analysis (TGA/DTA). Computational studies using
density functional theory (DFT) at the B3LYP/LANL2DZ level were performed to
optimize structures and analyze electronic properties. Spectroscopic results
suggest that the ligand coordinates in a bidentate fashion through azomethine
nitrogen and pyridine nitrogen, forming octahedral complexes. DFT calculations
provided insight into frontier molecular orbitals and charge distribution,
supporting the proposed geometry. Thermal stability and electronic transitions
were evaluated and correlated with computational results.
Pages:26-29
How to cite this article:
Priti Shrivastava, Dinesh Kumar Mishra, Samit Kumar, Awanish Kumar Patel, Ashish Sohgaura "Microwave-assisted synthesis, characterization, and computational studies of 3d metal complexes with a Schiff base derived from with 4-aminoantipyrine". International Journal of Chemical Science, Vol 10, Issue 1, 2026, Pages 26-29
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