Li Wang, Dao-ling Huang, Jun-feng Zhen, Qun Zhang, Yang Chen. Experimental Determination of the Vibrational Constants of FeS(X5△) by Dispersed Fluorescence Spectroscopy[J]. Chinese Journal of Chemical Physics , 2011, 24(1): 1-3. DOI: 10.1088/1674-0068/24/01/1-3
Citation:
Li Wang, Dao-ling Huang, Jun-feng Zhen, Qun Zhang, Yang Chen. Experimental Determination of the Vibrational Constants of FeS(X5△) by Dispersed Fluorescence Spectroscopy[J]. Chinese Journal of Chemical Physics , 2011, 24(1): 1-3. DOI: 10.1088/1674-0068/24/01/1-3
Li Wang, Dao-ling Huang, Jun-feng Zhen, Qun Zhang, Yang Chen. Experimental Determination of the Vibrational Constants of FeS(X5△) by Dispersed Fluorescence Spectroscopy[J]. Chinese Journal of Chemical Physics , 2011, 24(1): 1-3. DOI: 10.1088/1674-0068/24/01/1-3
Citation:
Li Wang, Dao-ling Huang, Jun-feng Zhen, Qun Zhang, Yang Chen. Experimental Determination of the Vibrational Constants of FeS(X5△) by Dispersed Fluorescence Spectroscopy[J]. Chinese Journal of Chemical Physics , 2011, 24(1): 1-3. DOI: 10.1088/1674-0068/24/01/1-3
Hefei National Laboratory for Physical Sciences at the Microscale, Department of Chemical Physics, University of Science and Technology of China, Hefei 230026, China
Funds: This work was supported by the National Natural Science Foundation of China (No.20673107 and No.20873133), the National Ba-sic Research Program of China (No.2007CB815203 and No.2010CB923302), the Chinese Academy of Sci- ences (No.KJCX2-YW-N24), and the Scientific Re-search Foundation for the Returned Overseas Chinese Scholars, Ministry of Education of China.
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.
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