Schematic representation of the sampling of reactive outcomes for the CH₃O + HCO reaction on a 18 H₂O cluster. Top: placement of the CH₃O molecule (depicting the High site; see text). Center: simplified representation of the radicals placed around the CH₃O radical. We depict only eight starting geometries, for clarity of visualization, while in reality they are 100 per binding site. Bottom: possible outcomes of the simulations.