3,5-diphenylisoxazole as ligand. Complexes of cobalt(II), nickel(II) and copper(II)

Abstract

Some complexes of cobalt(II), nickel(II) and copper(II) chloride, bromide, iodide, thiocyanate and perchlorate with 3,5-diphenylisoxazole (3,5-diPhisox) have been prepared and characterized. On the basis of vibrational and electronic spectroscopy, magnetism and conductivity measurements, the structures of these complexes were identified. The ligand behaves both as monodentate N-bonded, and as a bridging N- and O-bonded ligand. All the compounds here reported have an octahedral stereochemistry with the exception of [Co(3,5-diPhisox) 2X 2] (X = Cl, Br, I, NCS), which are tetrahedral, while the complex [Cu(3,5-diPhisox) 4] (ClO 4) 4·4H 4O is square planar.