Synthesis, characterisation and antimicrobial activity of metal complexes of N-(1-piperidinobenzyl)acetamide

Department of Chemistry, Regional Engineering College, Tiruchirappalli-620 015, India Manuscript received 12 November 1997, revised 14 May 1998. accepted 11September 1998 Solid complexes of a new Mannich base N-(1-piperidinobenzyl)acetamide (PBA) with Mnll, CoII, NiII, Cull, ZnII, CdIIand HgIIhave been synthesised. The complexes exhibit two types of stoichiometry, viz. [MX2L(H2O)2] and [MX2L2] (X = Cl, Br and NO3) in which PBA acts as a bidentate ligand coordinating through the oxygen of acetamide and nitrogen of piperidine moieties. Preliminary result shows that the ligand and complexes possess antimicrobial activities.