Ion-Pair Photodissociation of Trichloromonofluoromethane
- Received Date: 2011-03-17
- Trichloromonofluoromethane, Ion-pair dissociation, Rydberg state, Ion-pair anion efficiency spectrum, Time-of-flight mass spectrometer
Abstract: Anionic fragments, F- and Cl- including two isotope species 35Cl- and 37Cl-, are ob-served in the photoexcitations of CFCl3. The ion-pair anion e±ciency spectra of 35Cl- and 37Cl- are recorded in the photon energy range of 7.75～22.00 eV. The threshold of ion-pair dissociation CFCl3→CFCl2++Cl- is experimentally determined to be 7.94±0.04 eV. With the references of the high-resolution photoabsorption spectra reported in the literatures, we make tentative assignments of the electron valence-to-Rydberg transitions. Furthermore, the multibody ion-pair fragmentation processes to Cl- are discussed by comparison between the calculated thermochemical thresholds and the experimental efficiency spectrum.
|Citation:||Liu-li Chen, Shan-xi Tian, Yun-feng Xu, Gen-bai Chu, Fu-yi Liu, Xiao-bin Shan, Liu-si Sheng. Ion-Pair Photodissociation of Trichloromonofluoromethane[J]. Chinese Journal of Chemical Physics , 2011, 24(3): 261-266. doi: 10.1088/1674-0068/24/03/261-266|