Our research group (Interface Theory Experiment: Mechanism & Modeling) use synergistical interplay between theory and experiment to decipher chemical mechanisms. Our research is dedicated to the understanding and modeling of complex catalytic systems through a multidisciplinary approach: at the interphase between advanced physicochemical characterization and multi-scale computer modeling. We are particularly interested in polymetallic mechanisms (clusters of metals in solutions, supported nanoparticles, etc.), mechanisms of transmetalation reactions, descriptor development for the optimization assisted by artificial intelligence of reactions and the calculation of spectroscopic properties for the characterization of non-isolable species.