Journal
JOURNAL OF CHEMICAL PHYSICS
Volume 134, Issue 13, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.3574345
Keywords
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Funding
- National Energy Technology Laboratory of the U.S. Department of Energy
- Engineering and Physical Sciences Research Council
- EPSRC [EP/E06082X/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/E06082X/1] Funding Source: researchfish
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A five-dimensional potential energy surface is calculated for the interaction of water and CO2, using second-order Moller-Plesset perturbation theory and coupled-cluster theory with single, double, and perturbative triple excitations. The correlation energy component of the potential energy surface is corrected for basis set incompleteness. In agreement with previous studies, the most negative interaction energy is calculated for a structure with C-2v symmetry, where the oxygen atom of water is close to the carbon atom of CO2. Second virial coefficients for the water-CO2 pair are calculated for a range of temperatures, and their uncertainties are estimated. The virial coefficients are shown to be in close agreement with the available experimental data. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3574345]
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