INSERTION OF CHLOROALUMINO-ORGANIC BRIDGES IN COORDINATED SALICYLALDOXIME

Abstract

Chloroalumino-organic compounds of coordinated salicylaldoxime resulted from the reaction of Ni(II), Pd(II) and Cu(II) bis(salicylaldoximates) with diethylaluminum chloride and were isolated as coloured powders. They were characterised by elemental analyses, IR absorption spectra, X-ray diffraction spectra and magnetic measurements. Substitution of O─H…O bonds in chelates by O─Al─O bridges forms a penta-atomic metallocycle, M─O─Al─O─N, without carbon atoms. Among the amine-containing adducts of alumino-organic derivatives of coordinated sailcylaldoxime only those with pyridine were isolated and characterised. Since the adducts of nickel with four pyridine molecules and of copper with three molecules are crystalline and paramagnetic, they depart from the general chemical behaviour of alumino-organic derivatives of coordinated salicylaldoxime.

Acknowledgments