Footprint characterization of chiral molecules on metallic surface

R.O. UÑAC; A. V. GIL RABAZA; A.M. VIDALES; G. ZGRABLICH

San Carlos de Bariloche, Argentina

Congreso; 13th International Conference on Solid Films and Surface; 2006

We study the behavior of chiral molecules on clean metallic surfaces using a gas lattice model and Monte Carlo simulation. The aim is to simulate the structures (footprints and organization) that molecules form on the surface as they adsorb at a constant temperature. These features constitute different phases that have been observed in experiments by other authors through different techniques. Here we use a simple monomer adsorption model, in which each monomer may adsorb on the sites of the metallic lattice, taking into account inhibition effects and blockage of neighboring adsorptive sites (steric effects). These adsorption rules represent the enantiomeric character of the adsorbed species. We perform a systematic study of the different phases that