OCS的多光子电离高分辨光电子能谱  

High Resolution Multiphoton Ionization Photoelectron Spectra of OCS

作　　者：杨达林[1] 丁传凡[1] 周游[1] 蔡晖[1] 朱起鹤[1] 

机构地区：[1]中国科学院化学研究所分子反应动力学国家重点实验室,北京100080

出　　处：《物理化学学报》1994年第9期838-840,共3页Acta Physico-Chimica Sinica

基　　金：国家自然科学基金

摘　　要：Using a Nd:YAG pumped pulsed dye laser-wavelength extender as UV light source, the multiphoton ionization of o CS was studied in a supersonic moecular beam with a Time of Flight mass spectrometer and a Magnetic Bottle Time of Flight photoelectron spectrometer. The intermediate resonant states of OCS were obtained from the massselected MPI spectra by scanning the laser wavelength. From 2+1 MPI photoelectron spectra at dmerent resonant wavelength the vibrational levels of OCS+ ion in electronic ground state X2 H3/2,1/2 were assigned and their X2II spin-orbital splitting was determined to be 0.046eV. The non Franck-Condon behavior between the Rydberg intermediate state and the ionic state has been discussed.Using a Nd:YAG pumped pulsed dye laser-wavelength extender as UV light source, the multiphoton ionization of o CS was studied in a supersonic moecular beam with a Time of Flight mass spectrometer and a Magnetic Bottle Time of Flight photoelectron spectrometer. The intermediate resonant states of OCS were obtained from the massselected MPI spectra by scanning the laser wavelength. From 2+1 MPI photoelectron spectra at dmerent resonant wavelength the vibrational levels of OCS+ ion in electronic ground state X2 H3/2,1/2 were assigned and their X2II spin-orbital splitting was determined to be 0.046eV. The non Franck-Condon behavior between the Rydberg intermediate state and the ionic state has been discussed.

关 键 词：硫氧化碳 多光子电离 光电子能谱 

分 类 号：O613.71[理学—无机化学]