Analysis of the S1 ← S0 and D0 ← S1 spectra in m-bromofluorobenzene via resonance-enhanced multiphoton ionization and slow electron velocity-map imaging spectroscopy
Analysis of the S1 ← S0 and D0 ← S1 spectra in m-bromofluorobenzene via resonance-enhanced multiphoton ionization and slow electron velocity-map imaging spectroscopy
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通过共振增强多光子电离和慢电子速度图成像光谱分析间溴氟苯中的 S 1 → S 0 和 D 0 → S 1 光谱
DOI：
10.1016/j.jqsrt.2018.11.008
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发表时间：
2019-02
影响因子：
2.3
通讯作者：
Zhifeng Cui
中科院分区：
文献类型：
--
作者：
Zhengbo Qin;Naiyu Ma;Yangdi Ren;Xianfeng Zheng;Guanxin Yao;Xianyi Zhang;Zhifeng Cui
用共振增强多光子电离(REMPI)光谱和慢电子速度图成像(SEVI)光谱研究了间溴氟苯(m-BrFPh)在第一激发态(S1)和阳离子基态(D0)的振动。还采用了量子化学计算方法对观测到的振动带进行了指认。根据m-←的共振增强单色双光子电离光谱，确定了S1BrFP S0电子跃迁的能带来源为36,987±4 cm−1。根据谱带来源确定了73,903±8 cm−-1的绝热电离势。同时，计算的频率与实验观测结果符合得很好，并用Franck-Condon方法进行了模拟以帮助我们确定S1和D0态的主要振动模。并考察了S_1、←、S_0和D_0、←、S_1跃迁时振动模波数的变化。此外，还讨论了S0和S1之间以及S1和D0之间的振动模的混合。
Vibrations of m-bromofluorobenzene (m-BrFPh) in the first excited state (S1) and the cationic ground state (D0) are investigated by resonance-enhanced multiphoton ionization (REMPI) spectroscopy and slow electron velocity-map imaging (SEVI) spectroscopy, respectively. Quantum chemical calculations have been adopted to assign the observed vibrational bands, as well. The band origin of the S1 ← S0 electronic transition defines the adiabatic excitation energy to be 36,987 ± 4 cm−1 based on the resonanceenhanced one-color two-photon ionization spectrum of m-BrFPh. And adiabatic ionization potential (IP) of 73,903 ± 8 cm−1 is determined from band origin in the SEVI spectra. Meanwhile, the computed frequencies are in excellent agreement with the experimental observations and Franck-Condon simulations are performed to aid us to confidently assign major vibrational modes in S1 and D0 states. And the changes in the wavenumber of the vibrational modes upon S1 ← S0 and D0 ← S1 transitions are examined. Furthermore, the mixing of vibrational modes both between S0 & S1 and between S1 & D0 has been discussed.
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DOI：
10.1016/0371-1951(63)80129-0
发表时间：
1963-03
期刊：
Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy
影响因子：
--
作者：
G. Varsányi;S. Holly;T. Faragó
通讯作者：
G. Varsányi;S. Holly;T. Faragó
用于共振增强多光子电离和光电子成像实验的双静电透镜光学器件设计
影响因子：
1.6
作者：
Qu Zehua;Li Chunsheng;Qin Zhengbo;Zheng Xianfeng;Yao Guanxin;Zhang Xianyi;Cui Zhifeng;Zheng XF
通讯作者：
Zheng XF
影响因子：
8.6
作者：
S. Bellm;K. L. Reid
通讯作者：
S. Bellm;K. L. Reid
影响因子：
1.6
作者：
Dribinski, V;Ossadtchi, A;Reisler, H
通讯作者：
Reisler, H
DOI：
10.1016/0368-2048(80)80063-6
发表时间：
1980
影响因子：
1.9
作者：
M. Mohraz;J. Maier;E. Heilbronner;G. Bieri;R. H. Shiley
通讯作者：
M. Mohraz;J. Maier;E. Heilbronner;G. Bieri;R. H. Shiley