Quantum scattering of icosahedron fullerene C60 with noble-gas atoms
Abstract There exist multiple ways to cool neutral molecules. A front runner is the technique of buffer gas cooling, where momentum-changing collisions with abundant cold noble-gas atoms cool the molecules. This approach can, in principle, produce the most diverse samples of cold molecules. We prese...
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Nature Portfolio
2024-04-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-024-59481-x |
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| author | Jacek Kłos Eite Tiesinga Svetlana Kotochigova |
| author_facet | Jacek Kłos Eite Tiesinga Svetlana Kotochigova |
| author_sort | Jacek Kłos |
| collection | DOAJ |
| description | Abstract There exist multiple ways to cool neutral molecules. A front runner is the technique of buffer gas cooling, where momentum-changing collisions with abundant cold noble-gas atoms cool the molecules. This approach can, in principle, produce the most diverse samples of cold molecules. We present quantum mechanical and semiclassical calculations of the elastic scattering differential cross sections and rate coefficients of the C60 fullerene with He and Ar noble-gas atoms in order to quantify the effectiveness of buffer gas cooling for this molecule. We also develop new three-dimensional potential energy surfaces for this purpose using dispersion-corrected density functional theory (DFT) with counterpoise correction. The icosahedral anisotropy of the molecular system is reproduced by expanding the potential in terms of symmetry-allowed spherical harmonics. Long-range dispersion coefficients have been computed from frequency dependent polarizabilities of C60 and the noble-gas atoms. We find that the potential of the fullerene with He is about five times shallower than that with Ar. Anisotropic corrections are very weak for both systems and omitted in the quantum scattering calculations giving us a nearly quantitative estimate of elastic scattering observables. Finally, we have computed differential cross sections at the collision energies used in experiments by Han et al. (Chem Phys Lett 235:211, 1995), corrected for the sensitivity of their apparatus, and we find satisfactory agreement for C60 scattering with Ar. |
| format | Article |
| id | doaj-art-edf74ab7928e4319ba0e89db968b3dfa |
| institution | Kabale University |
| issn | 2045-2322 |
| language | English |
| publishDate | 2024-04-01 |
| publisher | Nature Portfolio |
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| series | Scientific Reports |
| spelling | doaj-art-edf74ab7928e4319ba0e89db968b3dfa2024-11-17T12:18:24ZengNature PortfolioScientific Reports2045-23222024-04-011411810.1038/s41598-024-59481-xQuantum scattering of icosahedron fullerene C60 with noble-gas atomsJacek Kłos0Eite Tiesinga1Svetlana Kotochigova2Department of Physics, Temple UniversityJoint Quantum InstituteDepartment of Physics, Temple UniversityAbstract There exist multiple ways to cool neutral molecules. A front runner is the technique of buffer gas cooling, where momentum-changing collisions with abundant cold noble-gas atoms cool the molecules. This approach can, in principle, produce the most diverse samples of cold molecules. We present quantum mechanical and semiclassical calculations of the elastic scattering differential cross sections and rate coefficients of the C60 fullerene with He and Ar noble-gas atoms in order to quantify the effectiveness of buffer gas cooling for this molecule. We also develop new three-dimensional potential energy surfaces for this purpose using dispersion-corrected density functional theory (DFT) with counterpoise correction. The icosahedral anisotropy of the molecular system is reproduced by expanding the potential in terms of symmetry-allowed spherical harmonics. Long-range dispersion coefficients have been computed from frequency dependent polarizabilities of C60 and the noble-gas atoms. We find that the potential of the fullerene with He is about five times shallower than that with Ar. Anisotropic corrections are very weak for both systems and omitted in the quantum scattering calculations giving us a nearly quantitative estimate of elastic scattering observables. Finally, we have computed differential cross sections at the collision energies used in experiments by Han et al. (Chem Phys Lett 235:211, 1995), corrected for the sensitivity of their apparatus, and we find satisfactory agreement for C60 scattering with Ar.https://doi.org/10.1038/s41598-024-59481-x |
| spellingShingle | Jacek Kłos Eite Tiesinga Svetlana Kotochigova Quantum scattering of icosahedron fullerene C60 with noble-gas atoms Scientific Reports |
| title | Quantum scattering of icosahedron fullerene C60 with noble-gas atoms |
| title_full | Quantum scattering of icosahedron fullerene C60 with noble-gas atoms |
| title_fullStr | Quantum scattering of icosahedron fullerene C60 with noble-gas atoms |
| title_full_unstemmed | Quantum scattering of icosahedron fullerene C60 with noble-gas atoms |
| title_short | Quantum scattering of icosahedron fullerene C60 with noble-gas atoms |
| title_sort | quantum scattering of icosahedron fullerene c60 with noble gas atoms |
| url | https://doi.org/10.1038/s41598-024-59481-x |
| work_keys_str_mv | AT jacekkłos quantumscatteringoficosahedronfullerenec60withnoblegasatoms AT eitetiesinga quantumscatteringoficosahedronfullerenec60withnoblegasatoms AT svetlanakotochigova quantumscatteringoficosahedronfullerenec60withnoblegasatoms |