Single photon ionization of van der Waals clusters with a soft x-ray laser: (SO2)n and (SO2)n(H2O)m
| dc.contributor.author | Dong, F., author | |
| dc.contributor.author | Rocca, Jorge J., author | |
| dc.contributor.author | Heinbuch, S., author | |
| dc.contributor.author | Bernstein, E. R., author | |
| dc.contributor.author | American Institute of Physics, publisher | |
| dc.date.accessioned | 2007-01-03T08:10:00Z | |
| dc.date.available | 2007-01-03T08:10:00Z | |
| dc.date.issued | 2006 | |
| dc.description.abstract | van der Waals cluster (SO2)n is investigated by using single photon ionization of a 26.5 eV soft x-ray laser. During the ionization process, neutral clusters suffer a small fragmentation because almost all energy is taken away by the photoelectron and a small part of the photon energy is deposited into the (SO2)n cluster. The distribution of (SO2)n clusters decreases roughly exponentially with increasing cluster size. The photoionization dissociation fraction of I[(SO2)n−1SO+]/I[(SO2)n+] decreases with increasing cluster size due to the formation of cluster. The metastable dissociation rate constants of (SO2)n+ are measured in the range of (0.6-1.5) × 104 s−1 for cluster sizes 5⩽n⩽16. Mixed SO2-H2O clusters are studied at different experimental conditions. At the condition of high SO2 concentration (20% SO2 partial pressure), (SO2)n+ cluster ions dominate the mass spectrum, and the unprotonated mixed cluster ions (SO2)nH2O+ (1⩽n⩽5) are observed. At the condition of low SO2 concentration (5% SO2 partial pressure) (H2O)nH+ cluster ions are the dominant signals, and protonated cluster ions (SO2)(H2O)nH+ are observed. The mixed clusters, containing only one SO2 or H2O molecule, SO2(H2O)nH+ and (SO2)nH2O+ are observed, respectively. | |
| dc.format.medium | born digital | |
| dc.format.medium | articles | |
| dc.identifier.bibliographicCitation | Dong, F., et al., Single Photon Ionization of van der Waals Clusters with A Soft X-Ray Laser: (SO2)n and (SO2)n(H2O)m, Journal of Chemical Physics 125, no. 15 (October 21, 2006): 154317-1-154317-9. | |
| dc.identifier.uri | http://hdl.handle.net/10217/67527 | |
| dc.language | English | |
| dc.language.iso | eng | |
| dc.publisher | Colorado State University. Libraries | |
| dc.relation.ispartof | Faculty Publications | |
| dc.rights | ©2006 American Institute of Physics. | |
| dc.rights | Copyright and other restrictions may apply. User is responsible for compliance with all applicable laws. For information about copyright law, please see https://libguides.colostate.edu/copyright. | |
| dc.title | Single photon ionization of van der Waals clusters with a soft x-ray laser: (SO2)n and (SO2)n(H2O)m | |
| dc.type | Text |
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