Some di- and trinuclear zinc complexes: Anion induced complex formation

Complexes of N,N'-bis(salicylidene)-1,3-diaminopropane, an ONNO type ligand , with ZnX2 (X = AcO., NO3-. Cl-, Br-, I-) salts were prepared. Molecular s tructures of these complexes were identified using elemental analyses, IR s pectrometry and X-ray diffraction techniques. It has been observed that the reactions between zinc ions and the said ligand tend to produce polynuclea r complexes and depending on the anion present either di- or trinuclear com plexes are formed. Thus, it can be deduced from the results presented in th is article that trinuclear complexes form when the zinc salt used was the a cetate or nitrate and dinuclear complexes form if the anion in the zinc sal t is a halogen.