Abstract

Sm(III) Chelates of isomeric juglones i.e of lawsone, juglone, phthiocol and plumbagin have been synthesized. Molecular structures of these isomeric chelates are investigated with the help of thermogravimetry, infrared, electronic spectroscopy and microanalysis. The antimicrobial activity of ligands and the chelates is tested. The results of structural investigations and antimicrobial activity are compared to explore the nature and consequences of ring isomerism on the structural characteristics and antimicrobial activity of these isomeric chelates.

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