NHC dicarbene complexes of metals of group 10 and 11 have an extended and studied chemistry both on structural aspect and catalytic properties. The first part of this work was about synthesis and characterization of some new platinum(II) and gold(I) complexes bearing macrocyclic ligands and the subsequently study of the reactivity of platinum(II) and palladium(II) complexes; since palladium(II) complexes was already successfully used as catalysts in copper-free Sonogashira reaction, resulting more active than the more classical carbene complexes reported in literature, in the second part a catalytic test was studied with a confront purpose for the qualitative determination of the catalytic efficiency of such compounds
