CAS OpenIR  > 中科院上海应用物理研究所2011-2019年
Conformation-Selective Resonant Photoelectron Spectroscopy via Dipole-Bound States of Cold Anions
Huang, DL; Liu, HT; Ning, CG; Wang, LS
2015
Source PublicationJOURNAL OF PHYSICAL CHEMISTRY LETTERS
Volume6Issue:12Pages:2153—2157
Subtype期刊文献
AbstractMolecular conformation is important in chemistry and biochemistry. Conformers connected by low energy barriers can only be observed at low temperatures and are difficult to be separated. Here we report a new method to obtain conformation-selective spectroscopic information about dipolar molecular radicals via dipole-bound excited states of the corresponding anions cooled in a cryogenic ion trap. We observed two conformers of cold 3-hydroxyphenoxide anions [m center dot HO(C6H4)O-] in high-resolution photoelectron spectroscopy and measured different electron affinities, 18 850(8) and 18 917(5) cm(-1), for the syn and anti 3-hydroxyphenoxy radicals, respectively. We also observed dipole-bound excited states for m-HO(C6H4)O- with different binding energies for the two conformers due to the different dipole moments of the corresponding 3-hydroxyphenoxy radicals. Excitations to selected vibrational levels of the dipole-bound states result in conformation-selective photoelectron spectra. This method should be applicable to conformation-selective spectroscopic studies of any anions with dipolar neutral cores.
KeywordGas-phase Vibrational Spectroscopy Ground-state Electron Ions Photodetachment Autodetachment Isomerization Ionization System
Indexed BySCI
Language英语
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/24416
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. Conformation-Selective Resonant Photoelectron Spectroscopy via Dipole-Bound States of Cold Anions[J]. JOURNAL OF PHYSICAL CHEMISTRY LETTERS,2015,6(12):2153—2157.
APA Huang, DL,Liu, HT,Ning, CG,&Wang, LS.(2015).Conformation-Selective Resonant Photoelectron Spectroscopy via Dipole-Bound States of Cold Anions.JOURNAL OF PHYSICAL CHEMISTRY LETTERS,6(12),2153—2157.
MLA Huang, DL,et al."Conformation-Selective Resonant Photoelectron Spectroscopy via Dipole-Bound States of Cold Anions".JOURNAL OF PHYSICAL CHEMISTRY LETTERS 6.12(2015):2153—2157.
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