The ice-like hexagonal structure of water molecules interacting with and above a model platinum catalyst surface is determined from quantum chemical calculations. Oxygen atoms in water shown as red, hydrogen atoms as white; platinum atoms are shown in bluish-grey. High-level details of the structure can be seen in the reflections of each atom surface.
Rees Rankin (Argonne's Center for Nanoscale Materials)
Photo courtesy of Argonne National Laboratory.