Preparation and reactivity of an O,O-chelating silsesquioxane-palladium complex

► Silsesquioxane functions as the bidentate ligand of Pd complexes. ► Silsesquioxanate ligand contains intramolecular O-H⋯O hydrogen bonding. ► Pd-Si bond is cleaved by chlorosilanes. ► The Pd-silsesquioxanate complex shows dynamic behavior in the solution.