Abstract
(2-((p-tolylimino)methyl)phenol) Schiff base as ligand (L) reacts with Ln(NO3)3⋅6H2O; Ln= with 1:3 molar ratio Three neutral lanthanides Schiff base coordination complexes La, Lb and Lc had a general formula [LnIII(LO’)3(NO3)3]; Ln = Nd (a), Tb (b) and Dy (c). Through the reaction, ligand (L) was converted into 2-((p-tolyliminium)methyl)phenolato) (L') zwitterionic tautomer, three units of L' whose phenolato oxygen donor atoms are kO-bonded to Ln(III), whereas the coordination sphere of Ln(III) is surrounded by three k2OO'-bonded nitrate ions produce nine-coordinated LnO9 unit exhibits a distorted tricapped trigonal prismatic structure.In vitro antimicrobial activity showed effectiveness of Lc by a comparative study of MIC values against Candida albicans and Staphylooccus aureus ATCC 29213 which was identified to exhibit higher antimicrobial activity than the free ligand.The magnetic properties of La, Lb and Lc have been investigated using SQUID (Superconducting Quantum Interference Device) magnetic susceptibility measurements.
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