| CONDENSED MATTER: STRUCTURE, MECHANICAL AND THERMAL PROPERTIES |
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Maximal Coordinator Number of Potassium, Rubidium, Caesium and Francium Ions in Gaseous Water |
MANG Chao-Yong1, WU Ke-Chen2 |
| 1Institute of Eastern-Himalaya Biodiversity Research, College of Life Science and Chemistry, Dali University, Dali 671000 2State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002 |
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| Cite this article: |
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MANG Chao-Yong, WU Ke-Chen 2010 Chin. Phys. Lett. 27 086104 |
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Abstract To understand the molecular and electronic structure of alkali metal ions, we carry out the MP2 calculation and demonstrate that the maximal coordinator numbers for the hydrated K+ and Rb+ are 8, while those for the hydrated Cs+ and Fr+ are 10. Furthermore, on the basis of the binding energy, the HOMO-LUMO gap and the electron affinity, the stability of the molecular and electronic structures of M+(H2O)8 (M = K, Rb, Cs, Fr) decreases with the increasing alkali metal atomic number and the stability of the molecular structures of M+(H2O)8-10 (M = Cs, Fr) decreases with the increasing cluster size.
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| Keywords:
61.46.Bc
71.20.Dg
33.15.Bh
31.15.vq
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Received: 24 February 2010
Published: 28 July 2010
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| PACS: |
61.46.Bc
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(Structure of clusters (e.g., metcars; not fragments of crystals; free or loosely aggregated or loosely attached to a substrate))
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71.20.Dg
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(Alkali and alkaline earth metals)
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33.15.Bh
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(General molecular conformation and symmetry; stereochemistry)
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31.15.vq
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(Electron correlation calculations for polyatomic molecules)
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