Abstract
The thio-ligand, 3-(2-thiazolin-2-yl)thiazolidine-2-thione (L2, C3H4S2N-C3H4SN), generated in situ from the reaction of thiazolidine-2-thione (L1, NC3H5S2) with copper(I) bromide in CH3CN under aerobic conditions involved C–S bond cleavage and yielded a three coordinate complex, (3-(2-thiazolin-2-yl)thiazolidine-2-thione)copper(I) bromide 1. Treatment of 1 with PPh3 in MeOH/CH2Cl2 mixture formed a copper(I) complex, (3-(2-thiazolin-2-yl)thiazolidine-2-thione)(triphenylphosphine)copper(I) bromide 2. This complex has four different types of donor atoms bonded to Cu(I) forming a central core,{Cu(N,P,S,Br)}, which is very unusual as normally the cores of known tetrahedral complexes are of type, {Cu(P2,S,X)}(X = halogen).Complex (3-(2-thiazolin-2-yl)thiazolidine-2-thione)(triphenylphosphine)copper(I) bromide 2 has unusual coordination core, Cu(N,P, S, Br).
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