期刊
JOURNAL OF CHEMICAL THEORY AND COMPUTATION
卷 8, 期 12, 页码 5124-5131出版社
AMER CHEMICAL SOC
DOI: 10.1021/ct3006375
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资金
- Spanish Malta/Consolider initiative [CSD2007-00045]
Intermolecular interactions between organic molecules and clay minerals are important in a wide range of chemical applications, ranging from oil-sands petroleum extraction to environmental chemistry and catalysis. The binding energies between each of benzene, n-hexane, pyridine, 2-propanol, and water and the kaolinite surface are calculated using density functional theory with the exchange-hole dipole moment dispersion model. The dominant noncovalent interactions are found to be hydrogen bonding for pyridine, 2-propanol, and water, OH-pi interactions for benzene, and CH-O interactions for n-hexane. All molecules considered are more strongly bound to the hydrophilic alumina face, rather than the hydrophobic siloxane face, of kaolinte.
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