DFT study for CCl4 adsorption on Ag(111) surface

PHYS 465

Xin Liu, Huimin Guo, and Changgong Meng. Department of Chemistry, Dalian University of Technology, Dalian, 116024, China
The adsorption of CCl4 on Ag(111) surface has been investigated within the framework of density functional theory. CCl4 adsorption is studied with a (3x3) adsorption structure. All the possible adsorption structures are studied, and the most stable adsorption structure is for CCl4 site with one Cl atom down on a 3-fold hollow site on Ag(111) surface. The adsorption is very weak with the adsorption energy of only about -0.1 eV, and the adsorption energy is inverse proportional to the coverage of CCl4. The interaction between Ag surface and CCl4 is the overall interaction between the non-bonding p states on Cl and Ag surface d states and sp states.