Tetradentate Schiff base (H4L) on account of its beauteousness and endearing popularity and versatility towards wide range of complex formations, many inquisitive chemists got interested to their complex formation after inclusion of suitable bridging or linking agents like SCN-1/N3-1. In the present research work, H4L novel Schiff base has been obtained by the 1:2 molar condensation of triethylenetetramine with 5-chloro-2-hydroxyacetophenone. Using the reference ligand two Zn(II) azide & thiocyanate bridging complexes were synthesized and characterized by common elemental analysis, IR and 1H NMR spectral data. Respective ligand and two Zn(II) complexes were further identified with the aid of UV spectral transition bands. The results confirmed that in both complexes Zn(II) bonded to the ligand through imine or amine nitrogen along with azide bridging or N-bonded thiocyanate as linker.
Keywords: Schiff Base H
4L; Zn(II) Azide; Zn(II) Thiocyanate;