The Fast Formation of a Highly Active Homogeneous Catalytic System upon the Soft Leaching of Pd Species from a Heterogeneous Pd/C Precursor

Understanding the interface between soluble metal complexes and supported particles is important in order to reveal reaction mechanisms a new generation of highly active homogeneous transition catalysts. In this study, we show that, case palladium forming on carbon (Pd/C) catalyst from Pd(0) complex Pd2dba3, nature deposited surface turns out be much richer than previously assumed, even if very simple experimental procedure utilized without use additional reagents procedures. process obtaining heterogeneous Pd/C catalyst, “hidden” centers are formed surface, which leached by solvent demonstrate diverse reactivity solution phase. The results indicate that catalysts may naturally contain trace amounts molecular monometallic different easily transforming them catalytic system. line with modern concept, heterogenized precursor was found leach first, leaving nanoparticles mostly intact surface. point neglected soft leaching contributes high activity. obtained demand for reconsidered as flexible tool construction rational design selective systems, starting available precursors.