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Article: Excitation and ionization of the monohaloethylenes (C2H3X, X = F, Cl, Br, I). II. Photoionization by He(I) and He(II) photoelectron spectroscopy and valence-shell excitation by electron energy loss spectroscopy

TitleExcitation and ionization of the monohaloethylenes (C2H3X, X = F, Cl, Br, I). II. Photoionization by He(I) and He(II) photoelectron spectroscopy and valence-shell excitation by electron energy loss spectroscopy
Authors
Issue Date1989
PublisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/chemphys
Citation
Chemical Physics, 1989, v. 137 n. 1-3, p. 369-390 How to Cite?
AbstractThe He (I) and He (II) photoelectron spectra and the valence-shell electron energy loss spectra for C2H3X (X = F, Cl, Br and I) have been recorded. The valence-shell electron energy loss spectra were obtained at an impact energy of 3000 eV and a zero degree scattering angle. In contrast to previous studies, the HOMO orbital in C2H3I is reassigned with dominant iodine 5p· character rather than the π(CC) character observed for the HOMO orbitals of C2H3F, C2H3Cl and C2H3Br. This reordering of the assignment in C2H3I is based on considerations of peak shape, vibrational profile and relative intensity change between He(I) and He (II) photoelectron spectra as well as observations from the valence shell electron energy loss spectra. The valence shell electron energy loss spectrum of each of the monohaloethylenes is tentatively assigned as being due to transitions from the various occupied valence orbitals to common manifolds of π*(CC), σ-*(CX) and Rydberg final orbitals. A linear correlation between the CX bond strength and the term values of the 2a″→σ* (CX) transition is also demonstrated. © 1989.
Persistent Identifierhttp://hdl.handle.net/10722/157230
ISSN
2015 Impact Factor: 1.758
2015 SCImago Journal Rankings: 0.719

 

DC FieldValueLanguage
dc.contributor.authorSze, KHen_US
dc.contributor.authorBrion, CEen_US
dc.contributor.authorKatrib, Aen_US
dc.contributor.authorElIssa, Ben_US
dc.date.accessioned2012-08-08T08:48:16Z-
dc.date.available2012-08-08T08:48:16Z-
dc.date.issued1989en_US
dc.identifier.citationChemical Physics, 1989, v. 137 n. 1-3, p. 369-390en_US
dc.identifier.issn0301-0104en_US
dc.identifier.urihttp://hdl.handle.net/10722/157230-
dc.description.abstractThe He (I) and He (II) photoelectron spectra and the valence-shell electron energy loss spectra for C2H3X (X = F, Cl, Br and I) have been recorded. The valence-shell electron energy loss spectra were obtained at an impact energy of 3000 eV and a zero degree scattering angle. In contrast to previous studies, the HOMO orbital in C2H3I is reassigned with dominant iodine 5p· character rather than the π(CC) character observed for the HOMO orbitals of C2H3F, C2H3Cl and C2H3Br. This reordering of the assignment in C2H3I is based on considerations of peak shape, vibrational profile and relative intensity change between He(I) and He (II) photoelectron spectra as well as observations from the valence shell electron energy loss spectra. The valence shell electron energy loss spectrum of each of the monohaloethylenes is tentatively assigned as being due to transitions from the various occupied valence orbitals to common manifolds of π*(CC), σ-*(CX) and Rydberg final orbitals. A linear correlation between the CX bond strength and the term values of the 2a″→σ* (CX) transition is also demonstrated. © 1989.en_US
dc.languageengen_US
dc.publisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/chemphysen_US
dc.relation.ispartofChemical Physicsen_US
dc.titleExcitation and ionization of the monohaloethylenes (C2H3X, X = F, Cl, Br, I). II. Photoionization by He(I) and He(II) photoelectron spectroscopy and valence-shell excitation by electron energy loss spectroscopyen_US
dc.typeArticleen_US
dc.identifier.emailSze, KH:khsze@hku.hken_US
dc.identifier.authoritySze, KH=rp00785en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.scopuseid_2-s2.0-0001669196en_US
dc.identifier.volume137en_US
dc.identifier.issue1-3en_US
dc.identifier.spage369en_US
dc.identifier.epage390en_US
dc.publisher.placeNetherlandsen_US
dc.identifier.scopusauthoridSze, KH=7006735061en_US
dc.identifier.scopusauthoridBrion, CE=7006196884en_US
dc.identifier.scopusauthoridKatrib, A=7003664478en_US
dc.identifier.scopusauthoridElIssa, B=15079135700en_US

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