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The laser-induced fluorescence spectrum of CoS between 15 200 and 19 000 cm-1
Jun-feng Zhen,Li Wang,Cheng-bing Qin,Qun Zhang,Yang Chen
Author NameAffiliationE-mail
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  
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  
Cheng-bing Qin 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  
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 xmyang@dicp.ac.cn 
Abstract:
Laser-induced fluorescence excitation spectra of jet-cooled CoS molecules have been recorded in the energy range of 15200~19000 cm-1. Five transition progressions have been reported for the first time, the assignments of these progressions have been derived from a rotational analysis of vibronic bands and they are determined to be [15.58]4Δ7/2X4Δ7/2, [16.02]4Δ7/2X4Δ7/2, [16.50]4Δ7/2X4Δ7/2, [17.80]4П5/2X4Δ7/2, and [18.00]4Δ7/2X4Δ7/2transitions. In addition, under the supersonic jet condition the fluorescent lifetimes of these vibronic states were measured by exponentially fitting the fluorescence decay. Based on the observed spectra and the measured lifetimes of the vibronic states, the newly identified electronic states are discussed.
Key words:  CoS, Laser-induced fluorescence spectroscopy, Lifetime
FundProject:
The laser-induced fluorescence spectrum of CoS between 15 200 and 19 000 cm-1
甄军锋,王莉,秦成兵,张群,陈旸*
摘要:
测量了在15200~19000 cm-1的超声射流冷却的CoS自由基的激光诱导荧光激发谱. 观测到[15.58]4Δ7/2X4Δ7/2, [16.02]4Δ7/2X4Δ7/2, [16.50]4Δ7/2X4Δ7/2, [17.80]4П5/2X4Δ7/2和[18.00]4Δ7/2X4Δ7/2五个电子跃迁序列. 此外,还测量到了大多数观察的振动带的寿命. 并讨论了这些新的电子态的电子构型.
关键词:  CoS,直流放电,激光诱导荧光
DOI:10.1088/1674-0068/23/03/262-268
分类号: