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dc.contributor.authorHolstein, W.
dc.contributor.authorDobeck, L.
dc.contributor.authorOtten, D.
dc.contributor.authorMetha, G.
dc.contributor.authorBuntine, Mark
dc.date.accessioned2017-01-30T14:38:45Z
dc.date.available2017-01-30T14:38:45Z
dc.date.created2012-12-03T07:24:54Z
dc.date.issued2003
dc.identifier.citationHolstein, Wendy L. and Dobeck, Laura M. and Otten, Dale E. and Metha, Gregory F. and Buntine, Mark A. 2003. Ultraviolet laser irradiation of low concentration liquid microjets: Solute evaporation and solvent initiated reactivity. Australian Journal of Chemistry 56 (5): pp. 481-487.
dc.identifier.urihttp://hdl.handle.net/20.500.11937/39994
dc.identifier.doi10.1071/CH03011
dc.description.abstract

Resonance-enhanced 266 nm 1 + 1 multiphoton ionization has been used in conjunction with a liquid microjet time-of-flight mass spectrometer to explore the photochemistry of a 10–3 M solution of anisole in ethanol. Only ions generated in the condensed phase originating from the three-photon non-resonant ionization of the ethanol solvent are liberated into the vacuum. No solute ions generated in solution are observed unless the concentration is increased to 1 M. Under high concentration conditions, solute pairing or aggregation at the liquid surface is a necessary precursor towards liberating solute photoions into the vacuum via a Coulombic explosion. At a solution concentration of 10–3 M, a decreased solute ion density at the liquid surface is insufficient to initiate a Coulombic explosion into the vacuum. Rather, non-resonantly generated solvent ions on the liquid surface dominate the ion ejection process. Related studies on 10–3 M solutions of 4-methoxyphenol in both ethanol and water show that at this concentration solute ionization is most likely to be observed following thermal evaporation from the surface of a liquid beam.

dc.publisherCSIRO Publishing
dc.subjectCluster ions
dc.subjectAqueous-solution
dc.subjectdissociation
dc.subjectIon-molecule reactions
dc.subjectBeam
dc.subjectejection
dc.subjectPhotoionization
dc.subjectMultiphoton ionization
dc.subjectAniline ethanol solution
dc.subjectDesorption mass-spectrometry
dc.titleUltraviolet laser irradiation of low concentration liquid microjets: Solute evaporation and solvent initiated reactivity
dc.typeJournal Article
dcterms.source.volume56
dcterms.source.number5
dcterms.source.startPage481
dcterms.source.endPage487
dcterms.source.issn00049425
dcterms.source.titleAustralian Journal of Chemistry
curtin.department
curtin.accessStatusFulltext not available


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