Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1193328 | International Journal of Mass Spectrometry | 2011 | 6 Pages |
Abstract
⺠Photolysis of freon molecules is closely related to the destructions of atmosphere. Negative ions 35ClÌ, 37ClÌ, and FÌ are observed in the vacuum ultraviolet photodissociations of CF2Cl2 using synchrotron radiation and their ion production efficiency curves are recorded in the photon energy range of 8.00-20.50 eV. The appearance energy of ClÌ is experimentally determined to be 8.20 ± 0.04 eV, in excellent agreement with the theoretical thermochemical value 8.19 eV. A novel competition between the ion-pair photodissociations to ClÌ and FÌ anions is found in the photon energy range of 17.30-20.50 eV.
Related Topics
Physical Sciences and Engineering
Chemistry
Analytical Chemistry
Authors
Liu-Li Chen, Shan Xi Tian, Yun-Feng Xu, Gen-Bai Chu, Fu-Yi Liu, Xiao-Bin Shan, Liu-Si Sheng,