• Dr.Annarao Maruti Chougule

Thermally stable complexes of, Cu(II), Ni(II), Co(II), Mn(II) and Fe(III) metal ions, Schiff bases (L1) [(4-(1-(4-hydroxy-6-methyl-[(2-oxo-2H-pyran-3-yl) ethylideneamino) phenyl) acetamide.] derived from P – amino acetanilide and the heterocyclic compound Dehydroacetic acid (DHA) and characterized by elemental analysis, IR, NMR,ultra violet visible spectroscopy, conductivity, thermal analysis, magnetic measurements, and a microbial study. The magnetic measurements and ultra violet visible spectral data of the complexes suggest a desorted octahedral geometry around the central metal ion. The molar conductance data revealed that all the complexes were non electrolytes in the ratio 1:2 (metal:ligand). The thermal stability of the complexes were studied by thermogravimetry. The ligands and their metal complexes were screened for biological activity against Aspergillusniger, Fusariumoxysporum, E. coli and Staphylococcus aureus.

Dehyderoacetic acid,Schiff bases, Transition metal complexes, Thermal stability, Antimicrobial activity, Antifungalactivity

"Schiff base and their metal complexes: synthesis, characterization And Biological activity", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.13, Issue 2, page no.a276-a282, February-2026, Available :http://www.jetir.org/papers/JETIR2602036.pdf

"Schiff base and their metal complexes: synthesis, characterization And Biological activity", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.13, Issue 2, page no. ppa276-a282, February-2026, Available at : http://www.jetir.org/papers/JETIR2602036.pdf