TY - JOUR
T1 - Action spectroscopy and predissociation of vibrationally excited C 2HD
AU - Ganot, Yuval
AU - Rosenwaks, Salman
AU - Bar, Ilana
N1 - Funding Information:
The present research was supported by grant No. 29/99-2 from the Israeli Science Foundation (ISF) and by the James Franck Binational German–Israeli Program in Laser-Matter Interaction. We thank Prof. P. J. Dagdigian for useful discussions.
PY - 2005/1/1
Y1 - 2005/1/1
N2 - H and D photofragments, produced via vibrationally mediated photodissociation of jet-cooled C2HD allowed measurement of vibrational and vibronic excitation action spectra of the parent as well as H and D Doppler profiles. The initial vibrational preparation at energies around 9700 cm-1 enhanced C-H and C-D bond cleavage for transitions from an initially excited bent state to the upper à state, rather than from a close lying state containing three C-H stretch quanta, due to favorable Franck-Condon factors for the former. The bound region of the A state was accessed, resulting in non-adiabatic dissociation and slight preferential C-H over C-D bond cleavage.
AB - H and D photofragments, produced via vibrationally mediated photodissociation of jet-cooled C2HD allowed measurement of vibrational and vibronic excitation action spectra of the parent as well as H and D Doppler profiles. The initial vibrational preparation at energies around 9700 cm-1 enhanced C-H and C-D bond cleavage for transitions from an initially excited bent state to the upper à state, rather than from a close lying state containing three C-H stretch quanta, due to favorable Franck-Condon factors for the former. The bound region of the A state was accessed, resulting in non-adiabatic dissociation and slight preferential C-H over C-D bond cleavage.
KW - Action Spectroscopy
KW - Enhanced Bond Cleavage
KW - Monodeuterated Acetylene
KW - Vibrationally Mediated Photodissociation
UR - http://www.scopus.com/inward/record.url?scp=19444365974&partnerID=8YFLogxK
U2 - 10.1524/zpch.219.5.569.64318
DO - 10.1524/zpch.219.5.569.64318
M3 - Article
AN - SCOPUS:19444365974
SN - 0942-9352
VL - 219
SP - 569
EP - 582
JO - Zeitschrift fur Physikalische Chemie
JF - Zeitschrift fur Physikalische Chemie
IS - 5
ER -