A homogenous metal complex with optimal catalytic behavior is often a good starting point for a well-known reaction. Similarly, there is sometimes a good combination of electrode materials. However, there are several things to keep in mind: (i) Implementing the molecular handle for immobilization may affect the catalytic behavior of the catalyst; (ii) Successful immobilization does not mean an invariable translation of the reactivity of the homogenous catalyst to the hybrid system.