IR Laser Photochemistry: Selective geometrical isomerization and collisional deactivation of cis-1,2-dichloro-1,2-difluoroethene

EDUARDO A.CORONADO

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY

ELSEVIER SCIENCE SA

Lugar: Amsterdam; Año: 1998 vol. 114 p. 89 - 89

1010-6030

he infrared multiphoton geometrical isomerization of cis-CIFC=CFCl was studied under different fluences and pressures in mixtures of cis and trans isomers at a constant concentration ratio of 0.9. The absorption process was characterized phenomenologically by laser absorption cross-section measurements as a function of fluence (Φ) and pressure. The collisional effects on P(Φ) were also investigated in the presence of added Ar, CO2, and C2F6. A simplified master-equation formalism was applied to simulate the absorption as well as the reactive and collisional relaxation process. In the latter case information about the energy transferred per collision 〈ΔE〉 for the different colliders was obtained.