Dinuclear Reactivity Between the Two Metal Centers

The chapter delves into the intricate world of dinuclear reactivity, where two metal centers cooperate to activate molecules. It begins by discussing the importance of cooperative effects between metal centers, which can enhance reactivity and selectivity compared to mononuclear complexes. The focus then shifts to the activation of molecules by homo- or hetero-bimetallic frameworks, highlighting the role of the coordination sphere in adjusting electron density and maintaining steric effects. The chapter also explores the mechanisms of dinuclear complexes containing adapted ligands for 1-electron reactions, including the absence of bridging ligands and the use of redox-active ligands. Notable examples include the Pauson–Khand reaction and the trimerization of alkynes on di-cobalt complexes. The text concludes by emphasizing the significance of suitable ligands for maintaining the right distance between metal centers and accommodating electronic effects and structural changes during catalytic steps. This chapter is a must-read for those seeking a deep understanding of dinuclear reactivity and the design of effective catalysts.