Synthesis, crystal structure and infrared spectra of Cu(II) and Co(II) complexes with 4,4′-dichloro-2,2′-[ethylene dioxybis(nitrilomethylidyne)]diphenol

Novel 4,4'-dichloro-2,2'-[ethylenedioxybis(nitrilomethylidyne)ldiphenoI (H2L) and its complexes [CuL] and ([CoL(THF)](2)(OAc)(2)Co) have been synthesized and characterized by elemental analyses, IR, H-1-NMR and X-ray crystallography. [CuL] forms a mononuclear structure which may be stabilized by the intermolecular contacts between copper atom (Cu) and oxygen atom (O3) to form a head-to-tail dimer. In ([CoL(THF)](2)(OAc)(2)Co}, two acetates coordinate to three cobalt ions through Co-O-C-O-Co bridges and four mu-phenoxo oxygen atoms from two [CoL(THF)] units also coordinate to cobalt ions. Copyright (c) 2008 John Wiley & Sons, Ltd.