UV Photoionization Study of the Ethyl Radical  

作　　者：WANG Jing WEI Li-xia YANG Bin YANG Rui HUANG Chao-qun SHAN Xiao-bin SHENG Liu-si ZHANG Yun-wu QI Fei YAO Chun-de LI Qi JI Qing 

机构地区：[1]National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, P. R. China [2]State Key Laboratory of Engines, Tianjin University, Tianjin 300072, P. R. China

出　　处：《Chemical Research in Chinese Universities》2006年第3期375-378,共4页高等学校化学研究（英文版）

基　　金：Supportedbythe"KnowledgeInnovation"FundingofCASandtheNationalNaturalScienceFoundationofChina(No.20473081).

摘　　要：The ethyl radical was observed in a low-pressure premixed gasdine/oxygen/argon flame by using tunable vacuum ultraviolet photoionization mass spectrometry. The ionization energy（IE） of the ethyl radical was derived to be（8. 24 ± 0. 02） eV from the photoionization efficiency curve. In addition, a high-level ab initio Gaussian-3 （G3） method was used to calculate the energies of the radical and its cation. The calculated adiabatic ionization potential is 8. 17 eV, which is in good agreement with the experimental value.The ethyl radical was observed in a low-pressure premixed gasdine/oxygen/argon flame by using tunable vacuum ultraviolet photoionization mass spectrometry. The ionization energy（IE） of the ethyl radical was derived to be（8. 24 ± 0. 02） eV from the photoionization efficiency curve. In addition, a high-level ab initio Gaussian-3 （G3） method was used to calculate the energies of the radical and its cation. The calculated adiabatic ionization potential is 8. 17 eV, which is in good agreement with the experimental value.

关 键 词：Ethyl radical Photoionization efficiency spectra Ionization energy 

分 类 号：O641.3[理学—物理化学]