### Abstract

Quantum calculations of product rotational distributions, cross sections and rate coefficients have been performed for the Cl + HCl → ClH + Cl reaction using the centrifugal-sudden distorted-wave (CSDW) technique. The CSDW method has been shown to be nearly exact at low total energies where the total reaction probability for each partial wave is small. The potential energy surface used is the extended London-Eyring-Polanyi-Sato surface No. 3 of Persky and Kornweitz. This surface has a tighter bending potential near the saddle point than many of the other commonly used Cl + HCl potentials. This difference in bending potential is found to have a profound influence on the product rotational distributions, producing much colder HCl molecules than is the case for the other potentials. In contrast, quantities such as rate coefficients and cumulative reaction probabilities are found to be only weakly sensitive to the strength of the bending potential. Comparison with quasiclassical trajectory results shows reasonable agreement with respect to the shape of the rotational distributions, but the magnitudes of the cross sections and rate coefficients are substantially different.

Original language | English |
---|---|

Pages (from-to) | 4893-4898 |

Number of pages | 6 |

Journal | Journal of Chemical Physics |

Volume | 92 |

Issue number | 8 |

Publication status | Published - 1990 |

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### ASJC Scopus subject areas

- Atomic and Molecular Physics, and Optics

### Cite this

*Journal of Chemical Physics*,

*92*(8), 4893-4898.

**A centrifugal-sudden distorted wave study of the Cl + HCl → ClH + Cl reaction using a "tight-bend" potential energy surface.** / Schatz, George C; Amaee, B.; Connor, J. N L.

Research output: Contribution to journal › Article

*Journal of Chemical Physics*, vol. 92, no. 8, pp. 4893-4898.

}

TY - JOUR

T1 - A centrifugal-sudden distorted wave study of the Cl + HCl → ClH + Cl reaction using a "tight-bend" potential energy surface

AU - Schatz, George C

AU - Amaee, B.

AU - Connor, J. N L

PY - 1990

Y1 - 1990

N2 - Quantum calculations of product rotational distributions, cross sections and rate coefficients have been performed for the Cl + HCl → ClH + Cl reaction using the centrifugal-sudden distorted-wave (CSDW) technique. The CSDW method has been shown to be nearly exact at low total energies where the total reaction probability for each partial wave is small. The potential energy surface used is the extended London-Eyring-Polanyi-Sato surface No. 3 of Persky and Kornweitz. This surface has a tighter bending potential near the saddle point than many of the other commonly used Cl + HCl potentials. This difference in bending potential is found to have a profound influence on the product rotational distributions, producing much colder HCl molecules than is the case for the other potentials. In contrast, quantities such as rate coefficients and cumulative reaction probabilities are found to be only weakly sensitive to the strength of the bending potential. Comparison with quasiclassical trajectory results shows reasonable agreement with respect to the shape of the rotational distributions, but the magnitudes of the cross sections and rate coefficients are substantially different.

AB - Quantum calculations of product rotational distributions, cross sections and rate coefficients have been performed for the Cl + HCl → ClH + Cl reaction using the centrifugal-sudden distorted-wave (CSDW) technique. The CSDW method has been shown to be nearly exact at low total energies where the total reaction probability for each partial wave is small. The potential energy surface used is the extended London-Eyring-Polanyi-Sato surface No. 3 of Persky and Kornweitz. This surface has a tighter bending potential near the saddle point than many of the other commonly used Cl + HCl potentials. This difference in bending potential is found to have a profound influence on the product rotational distributions, producing much colder HCl molecules than is the case for the other potentials. In contrast, quantities such as rate coefficients and cumulative reaction probabilities are found to be only weakly sensitive to the strength of the bending potential. Comparison with quasiclassical trajectory results shows reasonable agreement with respect to the shape of the rotational distributions, but the magnitudes of the cross sections and rate coefficients are substantially different.

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M3 - Article

VL - 92

SP - 4893

EP - 4898

JO - Journal of Chemical Physics

JF - Journal of Chemical Physics

SN - 0021-9606

IS - 8

ER -