In this paper, the previously synthesized Cu(II) complex ([CuL1(N3) (CH3OH)]BF4) with N,N,N-trimethyl-2-oxo-2-(2-(1-(thiazol-2-yl)ethylidene)- hydrazinyl)ethan-1-aminium chloride, has been characterized and its biological activity studied in detail. The consists of ligand coordinated a deprotonated, formally neutral zwitter-ionic form, via NNO atoms, one azido methanol molecule. was selected du...