dorsal/arxiv
View SchemaQuantum dynamics of the Li+HF-->H+LiF reaction at ultralow temperatures
| Authors | P. F. Weck, N. Balakrishnan |
|---|---|
| Categories | |
| ArXiv ID | physics/0412105 |
| URL | https://arxiv.org/abs/physics/0412105 |
| DOI | 10.1063/1.1884115 |
Abstract
Quantum mechanical calculations are reported for the Li+HF(v=0,1,j=0)-->H+LiF(v',j') bimolecular scattering process at low and ultralow temperatures. Calculations have been performed for zero total angular momentum using a recent high accuracy potential energy surface for the X 2A' electronic ground state. For Li+HF(v=0,j=0), the reaction is dominated by resonances due to the decay of metastable states of the Li...F-H van der Waals complex. Assignment of these resonances has been carried out by calculating the eigenenergies of the quasibound states. We also find that while chemical reactivity is greatly enhanced by vibrational excitation the resonances get mostly washed out in the reaction of vibrationally excited HF with Li atoms. In addition, we find that at low energies, the reaction is significantly suppressed due to the formation of rather deeply bound van der Waals complexes and the less efficient tunneling of the relatively heavy fluorine atom.
{
"annotation_id": "2fcac348-f82d-4db3-9ad9-2d2115b34065",
"date_created": "2026-03-02T18:00:53.728000Z",
"date_modified": "2026-03-02T18:00:53.728000Z",
"file_hash": "dd0cc1da5511f1780f6264175602be8de30ef27b3a8e15e28f3b31f00d26ab5c",
"private": false,
"record": {
"abstract": "Quantum mechanical calculations are reported for the\nLi+HF(v=0,1,j=0)--\u003eH+LiF(v\u0027,j\u0027) bimolecular scattering process at low and\nultralow temperatures. Calculations have been performed for zero total angular\nmomentum using a recent high accuracy potential energy surface for the X 2A\u0027\nelectronic ground state. For Li+HF(v=0,j=0), the reaction is dominated by\nresonances due to the decay of metastable states of the Li...F-H van der Waals\ncomplex. Assignment of these resonances has been carried out by calculating the\neigenenergies of the quasibound states. We also find that while chemical\nreactivity is greatly enhanced by vibrational excitation the resonances get\nmostly washed out in the reaction of vibrationally excited HF with Li atoms. In\naddition, we find that at low energies, the reaction is significantly\nsuppressed due to the formation of rather deeply bound van der Waals complexes\nand the less efficient tunneling of the relatively heavy fluorine atom.",
"arxiv_id": "physics/0412105",
"authors": [
"P. F. Weck",
"N. Balakrishnan"
],
"categories": [
"physics.chem-ph",
"physics.comp-ph"
],
"doi": "10.1063/1.1884115",
"title": "Quantum dynamics of the Li+HF--\u003eH+LiF reaction at ultralow temperatures",
"url": "https://arxiv.org/abs/physics/0412105"
},
"schema_id": "dorsal/arxiv",
"source": {
"execution_id": "356ec90b-b082-447d-99e8-e5806a15b48a",
"id": "arXiv Dataset IDs",
"type": "Model",
"variant": "snapshot-2026-03-01",
"version": "0.1.0"
},
"user_id": 1000002
}