Binuclear$ {\mu}{_1},${_1}-N{_3} and O–H...O bridged \ud nickel(II) complex with a $N{_3}O$ chelating agent: \ud Synthesis, structure and magnetic properties

The pale blue colored complex of the formula [Ni-2(L)(HL)(mu(1,1)-N-3)(2)]ClO4 (1) has been synthesised in good yield by the reaction of Ni(ClO4)(2) center dot 6H(2)O with N,N-bis(2-methylpyridyl)-3,5-dimethyl-2-hydroxybenzylamine (HL) in methanol in the presence of sodium azide. The crystal structure of the complex has been determined. The X-ray structure reveals that the metal centres are linked by both an end-on bridged azide ligand as well as through an [O-H center dot center dot center dot O] interacting unit. Magnetic susceptibility measurements confirm the ferromagnetic character of the complex.\u