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Details for article 40 of 88 found articles
| Title: |
Feshbach resonances of the C3H- anion: laser autodetachment spectroscopy and ab initio calculations |
| Author: |
Pino, T. Pachkov, M. Tulej, M. Xu, R. Jungen, M. Maier, J. P. |
| Appeared in: |
Molecular physics |
| Paging: | Volume 102 (2004) nr. 18 pages 1881-1889 |
| Year: |
2004-09-20 |
| Contents: |
The electronic spectra of the C3H- and C3D- anions have been studied above the lowest electron detachment threshold. On the basis of the vibrational, rotational analysis and ab initio calculations, the photodetachment spectrum is assigned to the d3 A''←a3 A'' Feshbach resonance in the bent chain C3H(D)- anion. The vibronic system is characterized by a long vibrational progression involving the CCH in plane bending mode ν4. The potential curves along this coordinate obtained from the spectral analysis and theoretical calculations reveal the importance of vibronic coupling in the electronic excited states. A strong Renner-Teller effect is thought to be the reason for the existence of the Feshbach resonance because the 4Σ- neutral parent and the 3Π anion excited states are close in energy. As for the neutral, ν4 appears to be the active mode and drives the interaction between the Feshbach and the dipole bound states. |
| Publisher: |
Taylor & Francis |
| Source file: |
Elektronische Wetenschappelijke Tijdschriften |
Details for article 40 of 88 found articles
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