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http://hdl.handle.net/10397/5100
| Title: | Structure and potential energy surface for Na⁺．N₂ | Authors: | Soldán, P Spirko, V Lee, EPF Wright, TG |
Issue Date: | 22-Aug-1999 | Source: | Journal of chemical physics, 22 Aug. 1999, v. 111, no. 8, p. 3420-3425 | Abstract: | Attention is focused on the Na⁺．N₂complex as part of a study of Na⁺-containing complexes, which have been implicated in the formation of sporadic sodium layers in the upper atmosphere. The equilibrium structure is found to be linear, in agreement with previous studies. A potential energy hypersurface is calculated at the CCSD(T)/aug-cc-pVTZ level of theory, where the N₂ moiety is held fixed, but a wide range of Jacobi bond lengths and bond angles are sampled. This hypersurface is fitted to an analytic form and from this anharmonic vibrational separations are calculated, and compared to harmonic values. Rovibrational energy levels are also calculated from the fitted hypersurface. The best estimate of the interaction energy, ΔEₑ is 2770 cm⁻¹, and ΔH[sub f]²⁹⁸(Na⁺．N₂)=(136.5± 2.0) kcal mol⁻¹. | Keywords: | Sodium compounds Molecular configurations Potential energy surfaces Coupled cluster calculations Quasimolecules Rotational-vibrational states |
Publisher: | American Institute of Physics | Journal: | Journal of chemical physics | ISSN: | 0021-9606 | EISSN: | 1089-7690 | DOI: | 10.1063/1.479626 | Rights: | © 1999 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in P. Soldán et al., J. Chem. Phys. 111, 3420 (1999) and may be found at http://link.aip.org/link/?jcp/111/3420. |
| Appears in Collections: | Journal/Magazine Article |
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| Soldán_Structure_potenial_energy.pdf | 677.89 kB | Adobe PDF | View/Open |
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