Synthesis, X-ray crystal structure and magnetic properties of a new binuclear complex derived from a pentadentate Schiff base ligand

Abstract

A new binuclear nickel(II) complex [Ni₂L₂(N₃)₂](ClO₄)₂<b> 1</b> has been synthesized and /characterized. The structure of 1 has been determined by single crystal X-ray diffraction studies. The structure analysis indicates that each nickel(II) centre is in a distorted octahedral (NiN6) coordination environment with three nitrogen atoms from one and two nitrogen atoms from other pentadentate ligand and the last one from terminal azido ion. Variable-temperature magnetic susceptibility measurements of the compound <b>1</b> showed no evidence of magnetic exchange between two nickel(II) centres. This is consistent with the structure with large Ni ... Ni distance (5.865(1)Å) and absence of any suitable bridging ligand capable of transmitting this type of interactions.