The potential energy surface for the electronic ground state of CO 2 is refined by means of a two-step variational procedure using the exact rovibrational Hamiltonian in the bond length-bond angle coordinates. In the refinement, the observed rovibrational energy levels for J = 0-4 below 16,000 cm -1
Rotation–vibration energy levels from recent potential energy surfaces for the ground electronic states of NO2 and H2O
✍ Scribed by D. Belmiloud; M. Jacon
- Publisher
- John Wiley and Sons
- Year
- 2000
- Tongue
- English
- Weight
- 149 KB
- Volume
- 76
- Category
- Article
- ISSN
- 0020-7608
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✦ Synopsis
Using recently published potential energy surfaces, rovibrational energy levels are computed for the ground electronic states of H O and NO , using three-2 2 Ž . dimensional discrete variable representation DVR algorithms. Calculations are presented for H O to demonstrate the accuracy of these algorithms. In the case of NO , comparisons 2 2
with previous calculations are made as a test for the accuracy of the new potential energy surface.
📜 SIMILAR VOLUMES
The reaction energy profile for H q OH ¬ H q H O was computed 2 2 using HF, MP2, MP4, QCISD, G1, G2, and G2MP2 ab initio methods. In addition, the Ž . B3LYP, B3P86, B3PW91, BLYP, BP291, and SVWN density functional theory DFT methods were also used. All the ab initio methods, with the exception of th