Photoelectron imaging of cryogenically cooled BiO− and BiO2− anions
The advent of ion traps as cooling devices has revolutionized ion spectroscopy as it is now possible to efficiently cool ions vibrationally and rotationally to levels where truly high-resolution experiments are now feasible. Here, we report the first results of a new experimental apparatus that coup...
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| Veröffentlicht in: | The Journal of chemical physics 2022-11, Vol.157 (17), p.171101-171101 |
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| container_end_page | 171101 |
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| container_issue | 17 |
| container_start_page | 171101 |
| container_title | The Journal of chemical physics |
| container_volume | 157 |
| creator | Kocheril, G. Stephen Gao, Han-Wen Yuan, Dao-Fu Wang, Lai-Sheng |
| description | The advent of ion traps as cooling devices has revolutionized ion spectroscopy as it is now possible to efficiently cool ions vibrationally and rotationally to levels where truly high-resolution experiments are now feasible. Here, we report the first results of a new experimental apparatus that couples a cryogenic 3D Paul trap with a laser vaporization cluster source for high-resolution photoelectron imaging of cold cluster anions. We have demonstrated the ability of the new apparatus to efficiently cool BiO− and BiO2− to minimize vibrational hot bands and allow high-resolution photoelectron images to be obtained. The electron affinities of BiO and BiO2 are measured accurately for the first time to be 1.492(1) and 3.281(1) eV, respectively. Vibrational frequencies for the ground states of BiO and BiO2, as well as those for the anions determined from temperature-dependent studies, are reported. |
| doi_str_mv | 10.1063/5.0127877 |
| format | Article |
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The electron affinities of BiO and BiO2 are measured accurately for the first time to be 1.492(1) and 3.281(1) eV, respectively. 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| ispartof | The Journal of chemical physics, 2022-11, Vol.157 (17), p.171101-171101 |
| issn | 0021-9606 1089-7690 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_2734617044 |
| source | AIP Journals Complete; Alma/SFX Local Collection |
| subjects | Anions Clusters High resolution Image resolution Ion traps (instrumentation) Photoelectrons Temperature dependence Vaporization |
| title | Photoelectron imaging of cryogenically cooled BiO− and BiO2− anions |
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