Non-adiabatic transitions from the I2(E) induced by the transition dipole moment of I2(E–D) and the electric dipole moment of collision partners

Autor: M.E. Akopyan, S.S. Lukashov, Yu.D. Maslennikova, A.S. Torgashkova, S.A. Poretsky, Anatoly Pravilov
Rok vydání: 2008
Předmět:
Zdroj: Chemical Physics Letters. 458:29-34
ISSN: 0009-2614
DOI: 10.1016/j.cplett.2008.04.062
Popis: Optical–optical double resonance spectroscopy is used to obtain total rate constants, electronic branching ratios, and vibrational product state distributions for non-adiabatic transitions among the first-tier ion-pair states of the I 2 molecule excited to the E 0 g + , v E = 8 , 13 , 19 ; J E ≈ 55 rovibronic levels in collisions with M = CD 3 I and CH 3 COCH 3 . It is shown that I 2 ( E → M D ) near-resonant transitions are caused by the interaction between the transition dipole moment of I 2 (E–D) and the permanent electric dipole moment of M . The I 2 (D) state vibrational levels populated due to polarization interaction accompanied by quasi-resonance excitation of the collision partner are also observed.
Databáze: OpenAIRE