The chemistry of Palladuim and Copper is briefly reviewed, with emphasis on their +2 oxidation state, unique properties and structures of their complexes, beside the basic aspects of bonding, structure and geometrical aspected of metal complexation. The structure and bonding chemistry relevant to the use of dithiooxamide in metal complex synthysis is discussed and related to the questions posed in this work. The preparation of 1:1 for Palladuim (II) and 1:2 for Copper (II) to dithiarine complexes is described , as well as the preparation of mixed ligand complexes by further reaction with NPh3 , PPh3, AsPh3, 2,2/-dipyridyl and dithiooxamide. The use of FTIR, UV-Vis spectroscopy, magnetic susceptibility and conductivity measurements and metal analysis for the prepared complexes are described and their structure implications are discussed and compared with results from other studies. The Pd (II) complexes are sequar planar geometry, but Cu (II) complexes show to have octahedral geometry.