New insight into the structure of saturated chlorine layer on Ag(1Â 1Â 1): LT-STM and DFT study

► Saturated chlorine coverage on Ag(1 1 1) is a two-component system. ► Clusters Ag3Cl7 are formed on the boundaries between three antiphase (3 × 3) domains. ► Incomplete clusters AgxCl6 can play a role of active centers for oxygen adsorption in the reaction of ethylene epoxidation.