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Schiff base rare earth metal complexes: Studies on functional, optical and thermal properties and assessment of
Kavitha Andiappan1, Anandhavelu Sanmugam2, Easwaramoorthy Deivanayagam3
1Department of Chemistry, B.S Abdur Rahman Institute of Science and Technology, Vandalur, Chennai 600048, India; Department of Chemistry (S & H), Vel Tech Multi Tech., Chennai 600062, India.
Abstract:
We used the condensation chemistry with anthracene‑9‑carbaldehyde and 3,4‑diaminopyridine to form Schiff base (SB) ligand, N2,N3‑bis (anthracen‑9‑ylmethylene) pyridine‑3,4‑diamine incorporating Er, Pr and Yb rare earth metals to form a series of SB complexes. Surface, structure, thermal, and optical properties of the resulting complexes were investigated using a variety of tools. The characteristic luminescence properties were observed after rare earth metal inclusions in SB. Antibacterial studies were performed against Bacillus subtilis, Staphylococcus aureus, Escherichia coli and Pseudomonas aeruginosa in terms of zone of inhibition for SB complexes. The SB-Pr complexes showed better immune behavior against all the pathogens than the other SB metal complexes.
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