Synthesis, characterization and crystal structure determination of Ni(II)complex with N۲O۲ symmetrical tetradentate Schiff base ligand

The low-spin square-planar nickel(II) complexes and high-spin octahedral nickel(II)complexes with Schiff base ligands have been received much attention in optical materials [۱].Nickel is also recognized as a considerable important biological metal forming the active site of avariety of metalloproteins such as hygrogenase, carbon monoxide dehydrogenase, and urease [۲,۳]. A symmetrical Schiff base ligand has been prepared and characterized by elemental analysesand spectroscopic methods. The corresponding nickel(II) complex was synthesized withtetradentate Schiff base ligand derived from ۵-bromosalicylaldehyde and ۲,۲-dimethyl-۱,۳diaminopropane. This complex was characterized by ۱H NMR, FT-IR and its solid state structurewas determined using single crystal X-ray diffraction. The Ni(II) ion is coordinated by two Natoms and two O atoms from the tetradentate Schiff base ligand in a distorted square-planargeometry (Fig. ۱)

کلیدواژه ها:

Schiff base ، N۲O۲ donor ، Nickel complex ، Crystal structure