Threshold-photoelectron-spectroscopy-coincidence study of the double photoionization of HBr
| Autor: | Marc Moix Teixidor, Robert Richter, Franco Vecchiocattivi, Stefano Falcinelli, Michele Alagia, Fernando Pirani, Stefano Stranges, Pietro Candori, Brunetto Giovanni Brunetti |
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| Jazyk: | angličtina |
| Rok vydání: | 2004 |
| Předmět: |
double photoionization
Chemistry synchrotron radiation photoelectron spectroscopy Synchrotron Radiation Source diatomic dication General Physics and Astronomy Synchrotron radiation Photoionization Photon energy Ion Dication photoelectron spectra X-ray photoelectron spectroscopy Metastability metastable states positive ions Physical and Theoretical Chemistry Atomic physics vibrational states |
| Zdroj: | The Journal of chemical physics 120 (2004): 6980–6984. doi:10.1063/1.1669382 info:cnr-pdr/source/autori:Alagia, Michele (1-4); Pirani, Fernando (6); Vecchiocattivi, Franco (5); Stranges, Stefano (4); Richter, Robert (2); Brunetti, Brunetto G. (3); Candori, Pietro (6); Falcinelli, Stefano (6); Teixidor, Marc Moix (4)/titolo:Threshold-photoelectron-spectroscopy-coincidence study of the double photoionization of HBr/doi:10.1063%2F1.1669382/rivista:The Journal of chemical physics/anno:2004/pagina_da:6980/pagina_a:6984/intervallo_pagine:6980–6984/volume:120 |
| DOI: | 10.1063/1.1669382 |
| Popis: | A threshold-photoelectron-coincidence spectrum of HBr has been recorded in the 32.2-35.8 eV photon energy range, with a resolution of approximately 0.01 eV, using a synchrotron radiation source. The X (3)Sigma(-) and a (1)Delta(2) states of the HBr(2+) dication are clearly observed in the spectrum, while there is no clear evidence for the formation of the b (1)Sigma(+) electronic state. For the first two states, the vibrational states v=0-3 have been resolved, while for the ground X (3)Sigma(-) state also spin-orbit splitting has been detected. The results appear in good agreement with previous experimental observations. A comparison with theoretical predictions indicates the role of "noncovalent" contributions to the interaction between the two atomic partners for the formation of metastable states. |
| Databáze: | OpenAIRE |
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