Journal
OPEN CHEMISTRY
Volume 17, Issue 1, Pages 260-269Publisher
DE GRUYTER POLAND SP Z O O
DOI: 10.1515/chem-2019-0025
Keywords
Micro-hydration; RDF; DFT; Sodium Ion
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Sodium ion micro-solvated clusters, [Na(H2O)n](+), n = 1-7, were completed by (DFT) density functional theory at B3LYP/6-311+G(d,p) level in the gaseous phase. At the ambient situation, the four, five and six micro-solvated configurations can convert from each other. The investigation of the sequential water binding energy on Na+ obviously indicates that the influence of Na+ on the neighboring water molecules goes beyond the first solvation layer with the hydration number of 5. The hydration number of Na+ is 5 and the hydration space (r(Na-O)) is 2.43 angstrom. The current study displays that all our simulations have an brilliant harmony with the diffraction result from X-ray scattering study. The vibration frequency of H2O solvent was also determined. This work is important for additional identification of the Na+(H2O)n clusters in aqueous medium.
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