Preparation Ligand 5-(3-chlorophenyl)-1,3,4-oxadiazole-2-thiol by New Method and Complexation with Transition Metals

摘要

A ligand 5-(3-chlorophenyl)-1,3,4-oxadiazol-2-thiol (CPoxSH) synthesized by two methods and Its Zn{ll), Cd(ll), Hg(ll), Mn(ll), Co(ll), and Nl(ll) complexes were synthesized. The ligand were prepared by two methods, microwave and classic method, m-chlorobenzol hydrazlne(A) was prepared the hydrazinolysls of methyl m-chlorobenzoate(B) with hydrazine hydrate In abs. ethanol. Refluxing of m-chlorobenzol hydrazine(C) in basic medium with carbon disulfide CS2 to give 5-(3-chlorophenyl)-1,3,4-oxadiazol-2-thiol (D). And complexation with [HgX2]J (X= CI, Br, SCN)(1:1), and [Hg(OAc)2] (1:2) mole proportion of ligand. Reaction of MCl2.xH2O [M(ll)= Cd, Zn, Mn, Co, Ni] and [M(OAc)2.xH2O [M = Cd, Zn, Co, Ni] with ligand by (1:2) mole proportion. The preparation ligand and complexes were ctiaracterized by element analysis, IR spectral data , ~1H and ~(13)C-{~1H} NMR data.