Synthesis, Characterization, and Crystal Structure of a Novel Trinuclear Schiff Base Nickel(II) Complex

A novel azide and acetate bridged linear trinuclear Schiff base nickel(II) complex, [Ni{Ni(C₁₂H₁₇N₂O)(MeCOO)(μ_1,1‐N₃)(MeOH)}₂], has been synthesized and characterized by elemental analysis, IR spectra and single crystal X‐ray diffraction. There are 3 bridges across the Ni···Ni atom pairs, involving 1 phenolate oxygen atom of the Schiff base ligand 2‐[(2‐isopropylaminoethylimino)methyl]phenolate, 1 O‐C‐O bridge of the acetate group, and 1 μ_1,1 (end‐on, EO) azide group. The central Ni atom is located on an inversion centre and has an octahedral coordination. The coordination around each terminal Ni atom is also octahedron. The Ni···Ni distance is 3.086(2) Å.

Keywords:

• synthesis
• crystal structure
• Schiff base
• nickel(II) complex
• polynuclear complex