Using first principle methodologies, we investigate the subtle competition between σ H-bond and π stacking interaction between CO2 and imidazole either isolated, adsorbed on a gold cluster or adsorbed on a gold surface. These computations are performed using MP2 as well as dispersion corrected density functional theory (DFT) techniques. Our results show that the CO2 interaction goes from π-type stacking into σ-type when CO2 interacts with isolated imidazole and Au clusters or surface.
View Article and Find Full Text PDFWe investigate the intermolecular 1,4-diazabicyclo [2.2.2] octane (DABCO) interaction potential with He, Ne, Ar, and Kr rare gases (Rg) by means of post Hartree-Fock and the newly implemented explicitly correlated coupled cluster approaches in connection with several basis sets.
View Article and Find Full Text PDF