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Al atoms were confirmed to be present and their kinetic-energy distributions determined by laser-induced fluorescence time-of-flight measurements, over a wider range of ablation fluences than reported previously. Cations were detected directly using an in-line microchannel-plate-detector assembly. Corroboratory measurements of the ions entrained in a He buffer gas confirmed Al+ to be the only cation present in measurable concentrations. The Al+ kinetic energies were determined by time-of-flight and found to be much hotter than anticipated based on previous independent reports; under the highest-fluence conditions examined (30 mJ pulse\u20131, nominal fluence of 42 J cm\u20132), the mean kinetic energies of Al and Al+ were 17 and 450 eV, respectively. Using an electrostatic deflector, it was shown that both Al and Al+ projectiles produce AlF through reaction at the surface of the ionic liquid [C2mim][Tf2N] containing a fluorinated anion. The AlF yield from Al+ is mildly dominant under our conditions. AlF leaves the surface with near-thermal kinetic energy and rotational distributions. There is a minor component of vibrationally excited AlF which is confined to the fastest products. The observation of near-complete thermalization of the AlF products is consistent with significant penetration of the projectiles into the liquid, as would be anticipated from the high incident kinetic energies, particularly for Al+. The results provide new insights into reactive-atom scattering (RAS) from fluorine-containing liquid surfaces.<\/jats:p>","DOI":"10.1021\/acs.jpcc.6c03846","type":"journal-article","created":{"date-parts":[[2026,8,7]],"date-time":"2026-08-07T18:01:38Z","timestamp":1786125698000},"page":"11618-11633","source":"Crossref","is-referenced-by-count":0,"title":["Reaction of a Laser-Ablated\nAl Plume with a Fluorinated\nIonic-Liquid Surface: Characterizing the AlF-Producing Species"],"prefix":"10.1021","volume":"130","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-2784-2892","authenticated-orcid":true,"given":"Philip A. J.","family":"Pearcy","sequence":"first","affiliation":[{"name":"Heriot-Watt University , , ,","place":["Edinburgh, U.K., EH14 4AS"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4819-7714","authenticated-orcid":true,"given":"Paul. 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W.","family":"Bruce","sequence":"additional","affiliation":[{"name":"University of York , , , ,","place":["Heslington, York, U.K., YO10 5DD"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6491-8302","authenticated-orcid":true,"given":"John M.","family":"Slattery","sequence":"additional","affiliation":[{"name":"University of York , , , ,","place":["Heslington, York, U.K., YO10 5DD"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6491-9812","authenticated-orcid":true,"given":"Matthew L.","family":"Costen","sequence":"additional","affiliation":[{"name":"Heriot-Watt University , , ,","place":["Edinburgh, U.K., EH14 4AS"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8979-2195","authenticated-orcid":true,"given":"Kenneth G.","family":"McKendrick","sequence":"additional","affiliation":[{"name":"Heriot-Watt University , , ,","place":["Edinburgh, U.K., EH14 4AS"]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"316","published-online":{"date-parts":[[2026,8,7]]},"reference":[{"key":"2026082008282318600_cit1","doi-asserted-by":"publisher","first-page":"1735","DOI":"10.1021\/ac50006a030","article-title":"Analysis of Solid Materials by Laser Probe Mass-Spectrometry","volume":"48","author":"Bingham","year":"1976","journal-title":"Anal. 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