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Experimental Determination of the Vibrational Constants of FeS(X5△) by Dispersed Fluorescence Spectroscopy
Li Wang,Dao-ling Huang,Jun-feng Zhen,Qun Zhang*,Yang Chen*
Author NameAffiliationE-mail
Li Wang Hefei National Laboratory for Physical Sciences at the Microscale, Department of Chemical Physics, University of Science and Technology of China, Hefei 230026, China  
Dao-ling Huang Hefei National Laboratory for Physical Sciences at the Microscale, Department of Chemical Physics, University of Science and Technology of China, Hefei 230026, China  
Jun-feng Zhen Hefei National Laboratory for Physical Sciences at the Microscale, Department of Chemical Physics, University of Science and Technology of China, Hefei 230026, China  
Qun Zhang* Hefei National Laboratory for Physical Sciences at the Microscale, Department of Chemical Physics, University of Science and Technology of China, Hefei 230026, China qunzh@ustc.edu.cn 
Yang Chen* Hefei National Laboratory for Physical Sciences at the Microscale, Department of Chemical Physics, University of Science and Technology of China, Hefei 230026, China  
Abstract:
Based on previous laser-induced fluorescence excitation spectroscopy work, the vibrational constants of neutral FeS in the X5△ electronic state were obtained by directly mapping the ground-state vibrational levels up to v″=3 using conventional laser-induced dispersed fluorescence spectroscopy. The vibrational frequency of FeS(X5△) (518±5 cm-1) agrees well with that reported in a recent PES measurement (520±30 cm-1) [J. Phys. Chem. A 107, 2821 (2003)] which is the only one prior experimental vibrational frequency value for the 5△ state of FeS. Careful comparisons of our experimental results and those documented in the literature (mainly from theoretical predictions) suggest that the ground state of FeS is 5△ state.
Key words:  FeS, Vibrational constant, Laser-induced dispersed fluorescence spectroscopy
FundProject:
荧光色散谱对FeS(X5△)振动常数的实验确认
王莉,黄道菱,甄军锋,张群*,陈旸*
摘要:
基于之前的激光诱导荧光激发谱工作,采用激光诱导荧光色散谱技术直接侦测中性FeS基电子态X5¢振动能级到v″=3而获得其振动常数. 所得FeS(X5△)振动频率值(518±5 cm-1)和最近的光电子能谱测量值(520±30 cm-1) [J. Phys. Chem. A 107, 2821 (2003)]符合得较好,该光电子能谱测量值是之前唯一报道的FeS电子态振动频率的实验值. 通过比较实验结果和相关文献(主要来自理论预测),确定FeS的基态是X5△态.
关键词:  FeS,振动常数,激光诱导荧光色散谱
DOI:10.1088/1674-0068/24/01/1-3
分类号: