Optically active complexes of Schiff bases. Part 6. Palladium(II) and platinum(II) complexes with quadridentate Schiff bases of salicylaldehyde

Abstract

The synthesis and properties of palladium(II) and platinum(II) complexes with quadridentate Schiff bases derived from the condensation of salicylaldehyde and (R)-1,2-diamines are described. The ligand conformation of the platinum(II) complexes is discussed on the basis of the circular dichroism and the ¹H n.m.r. spectra. The anomalous patterns of the circular dichroism spectra of palladium(II) derivatives are also reported.