AB initio quantumchemical study of the intermolecular interactions of molecules of particular importance to environmental science
Abstract
Intermolecular forces induce various important physical and chemical phenomena, which range from the interaction between biomolecules to the thermal opacity of cool stars in the interstellar space. The electric interaction-induced properties of van der Waals complexes are closely related to the relevant spectroscopic observations of collision induced absorption (CIA) and collision induced light scattering (CILS). Especially CIA is the source of the dominant thermal opacity in the atmospheres of the major planets of our solar system, like Jupiter, Saturn, Uranus and Neptune. We present a systematic study of the structure and the electric induced properties of complexes that consist of molecules with great importance to the environmental science: Rg···Xe, N2···Rg, CO2···Rg, N2···N2, CO2···CO2, H2O···Rg, O3···Rg and (H2O)2···He, where Rg=He, Ne, Ar, Kr και Xe. We have used accurate ab initio and DFT methods with specially designed high quality basis sets. The presented calculations are vi ...
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