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Vibrational state-selective autodetachment photoelectron spectroscopy from dipole-bound states of cold 2-hydroxyphenoxide: o-HO(C6H4)O-
Huang, DL; Liu, HT; Ning, CG; Wang, LS
2015
Source PublicationJOURNAL OF CHEMICAL PHYSICS
Volume142Issue:12Pages:
Subtype期刊文献
AbstractWe report a photodetachment and high-resolution photoelectron imaging study of cold 2-hydroxyphenoxide anion, o-HO(C6H4) O-, cooled in a cryogenic ion trap. Photodetachment spectroscopy revealed a dipole-bound state (DBS) of the anion, 25 +/- 5 cm(-1), below the detachment threshold of 18 784 +/- 5 cm(-1) (2.3289 +/- 0.0006 eV), i.e., the electron affinity of the 2-hydroxyphenoxy radical o-HO(C6H4)O-center dot. Twenty-two vibrational levels of the DBS are observed as resonances in the photodetachment spectrum. By tuning the detachment laser to these DBS vibrational levels, we obtain 22 high-resolution resonant photoelectron spectra, which are highly non-Franck-Condon due to mode-selective autodetachment and the Delta v = -1 propensity rule. Numerous Franck-Condon inactive vibrational modes are observed in the resonant photoelectron spectra, significantly expanding the vibrational information that is available in traditional high-resolution photoelectron spectroscopy. A total of 15 fundamental vibrational frequencies are obtained for the o-HO(C6H4)O-center dot radical from both the photodetachment spectrum and the resonant photoelectron spectra, including six symmetry-forbidden out-of-plane modes as a result of resonant enhancement. (c) 2015 AIP Publishing LLC.
KeywordPhotodetachment Cross-sections Induced Electron Detachment Negative-ions Supported State Acetaldehyde Enolate Infrared-spectrum Polar-molecules Anions Dynamics Predissociation
Indexed BySCI
Language英语
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/24622
Collection中科院上海应用物理研究所2011-2019年
Recommended Citation
GB/T 7714
Huang, DL,Liu, HT,Ning, CG,et al. Vibrational state-selective autodetachment photoelectron spectroscopy from dipole-bound states of cold 2-hydroxyphenoxide: o-HO(C6H4)O-[J]. JOURNAL OF CHEMICAL PHYSICS,2015,142(12):—.
APA Huang, DL,Liu, HT,Ning, CG,&Wang, LS.(2015).Vibrational state-selective autodetachment photoelectron spectroscopy from dipole-bound states of cold 2-hydroxyphenoxide: o-HO(C6H4)O-.JOURNAL OF CHEMICAL PHYSICS,142(12),—.
MLA Huang, DL,et al."Vibrational state-selective autodetachment photoelectron spectroscopy from dipole-bound states of cold 2-hydroxyphenoxide: o-HO(C6H4)O-".JOURNAL OF CHEMICAL PHYSICS 142.12(2015):—.
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