The Onset of Coulomb Explosions in Polyatomic Molecules

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dc.contributor.authorSmith, D.J.
dc.contributor.authorLedingham, K. W. D.
dc.contributor.authorSinghal, R. P.
dc.contributor.authorMcCanny, T.
dc.contributor.authorGraham, P.
dc.contributor.authorKilic, H. S.
dc.contributor.authorTzallas, P.
dc.contributor.authorKosmidis, C.
dc.contributor.authorLangley, A. J.
dc.contributor.authorTaday, P. F.
dc.date.accessioned2020-03-26T16:27:42Z
dc.date.available2020-03-26T16:27:42Z
dc.date.issued1999
dc.departmentSelçuk Üniversitesien_US
dc.description.abstractWith the development of high intensity femtosecond lasers, the ionisation and dissociation dynamics of molecules has become an area of considerable interest. Using the technique of femtosecond laser mass spectrometry (FLMS), the molecules carbon disulphide, pyrimidine, toluene, cyclohexanone and benzaldehyde are studied with pulse widths of 50 fs in the near infrared (IR) wavelength region (790 nm). Results are presented and contrasted for laser beam intensities around 1015 and 1016W cm-2. For the lower intensities, the mass spectra yield dominant singly charged parent ions. Additionally, the appearance of doubly charged parent ions is evident for carbon disulphide, toluene and benzaldehyde with envelopes of doubly charged satellite species existing in these local regions. Carbon disulphide also reveals a small triply charged component. Such atomic-like features are thought to be a strong fingerprint of FLMS at these intensities. However, upon increasing the laser intensity to ~1016 W cm-2, parent ion dominance decreases and the appearance of multiply charged atomic species occurs, particularly carbon. This phenomenon has been attributed to Coulomb explosions in which the fast absorption of many photons may produce transient highly ionised parent species which can subsequently blow apart.en_US
dc.identifier.citationSmith, D.J., Ledingham, K. W. D., Singhal, R. P., McCanny, T., Graham, P., Kilic, H. S., Tzallas, P., Kosmidis, C., Langley, A. J., Taday, P. F., (1999). The Onset of Coulomb Explosions in Polyatomic Molecules. Rapid Communications in Mass Spectrometry, (13), 1366-1373.
dc.identifier.doi10.1002/(SICI)1097-0231(19990730)13:14<1366en_US
dc.identifier.endpage1373en_US
dc.identifier.issn0951-4198en_US
dc.identifier.scopusqualityQ3en_US
dc.identifier.startpage1366en_US
dc.identifier.urihttps://dx.doi.org/10.1002/(SICI)1097-0231(19990730)13:14<1366
dc.identifier.urihttps://hdl.handle.net/20.500.12395/17043
dc.identifier.volume13en_US
dc.indekslendigikaynakScopusen_US
dc.institutionauthorKilic, H. S.
dc.language.isoenen_US
dc.relation.ispartofRapid Communications in Mass Spectrometryen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.selcuk20240510_oaigen_US
dc.titleThe Onset of Coulomb Explosions in Polyatomic Moleculesen_US
dc.typeArticleen_US

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