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Sponsored by the Center for Science and Technology Development of the Ministry of Education
Supervised by Ministry of Education of the People's Republic of China
Ab initio calculations were carried out for system of CFCs (CFC-11, CFC-12, CFC-13) with CO2, and twelve stable configurations were obtained with no imaginary frequencies. To obtain the interaction energies of these complexes, single-point energy calculations with basis set superposition error (BSSE) correction were carried out at MP2/aug-cc-pvdz and MP2/aug-cc-pvtz levels. The analyses of charge transfer and the atoms in molecules theory (AIM) were used to analyze the nature of the interaction. The results of theoretical calculation indicate that there is the weak interaction as well as the presence of C朇l晻昈 type halogen bonding and C朏晻昈 bonds in these complexes, and which provided some information and data for studying environment problem.
Keywords:CFCs;CO2;Halogen bonding;Ab initio methods;AIM