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.