Theoretical study of the excitation function in the CN + C2H6 hydrogen transfer reaction. Effect of vibrational excitation
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arXiv
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| Format: | Preprint |
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2024
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| _version_ | 1866910433574649856 |
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| author | Espinosa-Garcia, Joaquin Rangel, Cipriano Corchado, Jose C. |
| author_facet | Espinosa-Garcia, Joaquin Rangel, Cipriano Corchado, Jose C. |
| contents | To gain insight into the dynamics of the CN + C2H6 gas-phase reaction, quasi-classical trajectory (QCT) calculations were performed on a full-dimensional analytical potential energy surface. This reaction presents very high exothermicity, -22.20 kcal/mol, and it is practically barrierless, with a barrier height of 0.23 kcal/mol, being an early transition state reaction. The V-shape form of the excitation function is characteristic of non-threshold reactions. The pronounced increase observed at lower energies can be attributed to the substantial increase in the impact parameter within this energy regime. Vibrational excitations by one quantum of stretching and bending modes give rise to excitation functions that present a similar V-shaped profile. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2405_01936 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Theoretical study of the excitation function in the CN + C2H6 hydrogen transfer reaction. Effect of vibrational excitation Espinosa-Garcia, Joaquin Rangel, Cipriano Corchado, Jose C. Chemical Physics To gain insight into the dynamics of the CN + C2H6 gas-phase reaction, quasi-classical trajectory (QCT) calculations were performed on a full-dimensional analytical potential energy surface. This reaction presents very high exothermicity, -22.20 kcal/mol, and it is practically barrierless, with a barrier height of 0.23 kcal/mol, being an early transition state reaction. The V-shape form of the excitation function is characteristic of non-threshold reactions. The pronounced increase observed at lower energies can be attributed to the substantial increase in the impact parameter within this energy regime. Vibrational excitations by one quantum of stretching and bending modes give rise to excitation functions that present a similar V-shaped profile. |
| title | Theoretical study of the excitation function in the CN + C2H6 hydrogen transfer reaction. Effect of vibrational excitation |
| topic | Chemical Physics |
| url | https://arxiv.org/abs/2405.01936 |