Abstract
Symmetry-resolved x-ray absorption spectroscopy has been first carried out on high-temperature molecules. From the angle-resolved ion yield spectra of CO2 both at room temperature and at 430°C, symmetry-resolved absorption profiles of the C 1s-12πu and O 1s-12πu resonances have been extracted for the vibrational ground state molecules and bending-vibration excited ones. The profiles change dramatically between them, and the Renner-Teller effect becomes more evident for the vibrationally excited molecules. The effects of the multimode vibronic coupling are suggested for the O 1s-12πu and O 1s-13sσg resonances.
Original language | English |
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Article number | 203002 |
Journal | Physical review letters |
Volume | 95 |
Issue number | 20 |
DOIs | |
Publication status | Published - 2005 Nov 11 |
ASJC Scopus subject areas
- Physics and Astronomy(all)