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dc.contributor.authorLopez-Dominguez, J.A.en_US
dc.contributor.authorHardy, Daviden_US
dc.contributor.authorDAS, ALOKEen_US
dc.contributor.authorPoliakoff, E.D.en_US
dc.contributor.authorAguilar, Alexen_US
dc.contributor.authorLucchese, Robert R.en_US
dc.date.accessioned2019-07-23T11:09:56Z
dc.date.available2019-07-23T11:09:56Z
dc.date.issued2012-09en_US
dc.identifier.citationJournal of Electron Spectroscopy and Related Phenomena, 185(8-9), 211-218.en_US
dc.identifier.issn0368-2048en_US
dc.identifier.issn1873-2526en_US
dc.identifier.urihttp://dr.iiserpune.ac.in:8080/xmlui/handle/123456789/3667-
dc.identifier.urihttps://doi.org/10.1016/j.elspec.2012.06.016en_US
dc.description.abstractThe molecular photoionization of N2 leading to the 3, 2 ion states and CO leading to the valence isoelectronic 5σ−1, 4σ−1 ion states has been studied using both theory and experiment. Vibrational branching ratios have been obtained in the 15–200 eV photoelectron energy range. The analysis of the branching ratios for these processes shows a breakdown in the Franck–Condon approximation in the range of energies studied. Some of the deviations at lower energies are well documented as due to shape resonances, and in such cases we found good agreement between the present work and previous experimental and theoretical investigations of these photoionization channels. For both N2 and CO ionization, we also found that the partial wave cross sections have an interference pattern similar to a Young-type interference, which are related to molecular Cooper minima. Such features were also seen to induce non-Franck–Condon effects in the vibrational branching ratios at higher energies. The comparison of theory and experiment was facilitated by the introduction of an electronic factor (F) that is the logarithmic derivative of the cross section with respect to bond length and which could be directly related to the branching ratios.en_US
dc.language.isoenen_US
dc.publisherElsevier B.V.en_US
dc.subjectMechanisms of Francken_US
dc.subjectCondon breakdownen_US
dc.subjectBroad energy rangeen_US
dc.subjectPhotoionization of N2 and COen_US
dc.subjectMolecular photoionizationen_US
dc.subject2012en_US
dc.titleMechanisms of Franck–Condon breakdown over a broad energy range in the valence photoionization of N2 and COen_US
dc.typeArticleen_US
dc.contributor.departmentDept. of Chemistryen_US
dc.identifier.sourcetitleJournal of Electron Spectroscopy and Related Phenomenaen_US
dc.publication.originofpublisherForeignen_US
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