Axial ligation for copper (II) complexes of bis (acetylacetonato) ethylenediimine and bis (3-chloroacetylacetonato) ethylenediimine

In this work, the N2O2 ligands AN and AN-Cl and their copper (II) complexes CuAN and CuAN-Cl are prepared and characterized by mass, FTIR, UV-Visible absorption spectrometries, XRD diffraction, and thermal analyses. The reaction of copper complexes CuAN and CuAN-Cl with 4,4 -bipyridine at lab temperature afforded the five coordinated adducts CuANbpy and CuAN-Clbpy, respectively. Likewise, these adducts are formed in solution (CHCl3 and DMF) and followed by absorption spectroscopy. The interaction of copper (II) complex with non-substituted bis-viologen V22+.2PF62- are carried out in DMF media to afford the adducts CuAN-Cl. V22+.2PF62-. The novel molecular switch is obtained after reduction the viologen unites of this adduct in DMF media.