Synthesis and Crystal Structure of Supramolecular Trinuclear Nickel(II) Complex with 5-Methoxy-4′-chloro-2,2′-[ethylenedioxybis(nitrilomethylidyne)]diphenol

A new trinuclear Ni(II) complex has been synthesized through the reaction of an asymmetric Salamo-type ligand of 5-methoxy-4'-chloro2,2'-[ethylenedioxybis(nitrilomethylidyne)]diphenol (H2L) with Ni(II) acetate tetrahydrate in n-butanol/acetonitrile solution and characterized by X-ray diffraction methods. The X-ray crystallography of the Ni(II) complex shows that the unit cell contains two crystallographically independent but chemically identical trinuclear Ni(II) complex (molecules A and B) and each molecule comprises three Ni(II) atoms, two deprotonated L-2-units, two acetate anions and two coordinated n-butanol molecules. In the crystal, the complex molecules are linked to form an infinite sandwich supramolecular structure through intermolecular O-H center dot center dot center dot O and C-H center dot center dot center dot O hydrogen bond interactions.