Synthesis and full characterization of new symmetric bis-triazol ligand and complexes with divalent Nickel,Copper and Zinc

The synthesisvia the cu(i)-catalyzed huisgen dipolar cycloaddition of n,n'-bis(triazolyl) n,n-dimethyl-propyldiaminel2,from commercial n,n'-dimethyl-propyldiamine. this ligand bears two propanol moieties connected to triazoles via the azote for increasing water solubility and overcome the dissolution problems encountered in the previous works. the interaction of these ligands with niii,cuii,and znii cations were fully investigated by uv/vis and 1h and 13c nmr,cyclic voltammetry and electron paramagnetic resonance (epr) spectroscopies. the copper(ii) complex have a square-based pyramidal geometry,as witnessed by the reported spectroscopic,uv/vis and epr features. the stoichiometry of the complexes was established from the elemental analysis,mass and uv-visible spectroscopies.