Synthesis and Characterization of A Nickel(II) Complex With Bis(Benzimidazol-2-Ylmethyl) (2-Hydroxyethyl)Amine

This paper reports the synthesis, crystal structure and properties of two new mononuclear nickel(II) complexes, [NiL(phen)][ClO₄]₂(1) and [NiL(bpy)][ClO₄]₂(2), where L is bis(benzimidazol-2-ylmetheyl)(2-hydroxyethyl)amine and phen and bpy are 1,10-phenanthroline and 2,2'-bipyridine, respectively. The crystal structure of 1 ·2EtOH has been determined by single-crystal X-ray analysis. It crystallizes in the monoclinic system, space group C2/c, a= 24.279(2), b= 20.864(2), c= 17.635(1)Å, g = 121.730(2)°, Z= 8, R ₁= 0.064, wR ₂= 0.167. The Ni(II) ion in 1 ·2EtOH is coordinated to three nitrogen atoms and one oxygen atom of the ligand L and two nitrogen atoms of phen to form a distorted octahedron. Spectroscopic properties of 1 and 2 are reported.

Keywords:

• Nickel(II) Complex
• Crystal Structure
• 1,10-phenanthroline
• 2,2′-bipyridine
• Spectroscopy