Infrared laser desorption of hydroquinone from a water-ethanol liquid beam

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dc.contributor.authorOtten, D.
dc.contributor.authorTrevitt, A.
dc.contributor.authorNichols, B.
dc.contributor.authorMetha, G.
dc.contributor.authorBuntine, M.
dc.date.issued2003
dc.descriptionCopyright © 2003 American Chemical Society
dc.description.abstractWe have investigated the 1.9-μm IR desorption of hydroquinone in a water/ethanol liquid beam under relatively high desorption laser fluences (1316 and 2632 mJ cm⁻² pulse⁻¹). The appearance of the IR desorption/UV ionization TOF mass spectrum of hydroquinone (HQ) is interpreted in terms of dissociation of solvated HQ clusters during the ionization event. The maximum in the hydroquinone desorption velocity distribution is 300 ms⁻¹, and the translational temperature of the desorbed species is approximately 1500 K. We see no evidence for an acoustic compression-ejection mechanism, suggesting that such a process is operative at desorption laser fluences lower than employed here. Our results suggest a general mechanism for the high-powered IR desorption from a liquid beam whereby desorbed species are ejected into the vacuum possessing considerable translational energy but remain internally cool.
dc.description.statementofresponsibilityDale E. Otten, Adam J. Trevitt, Benjamin D. Nichols, Gregory F. Metha, and Mark A. Buntine
dc.identifier.citationJournal of Physical Chemistry A, 2003; 107(32):6130-6135
dc.identifier.doi10.1021/jp022248b
dc.identifier.issn1089-5639
dc.identifier.issn1520-5215
dc.identifier.orcidMetha, G. [0000-0003-1094-0947]
dc.identifier.urihttp://hdl.handle.net/2440/17932
dc.language.isoen
dc.publisherAmer Chemical Soc
dc.source.urihttps://doi.org/10.1021/jp022248b
dc.titleInfrared laser desorption of hydroquinone from a water-ethanol liquid beam
dc.typeJournal article
pubs.publication-statusPublished

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