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题名: Vibrational spectra and theoretical calculations of p-chlorophenol in the electronically excited S-1 and ionic ground D-0 states
作者: Huang, Jianhan1, 3;  Huang, Kelong1;  Liu, Suqin1;  Luo, Qiong1;  Tzeng, Wenbih2
关键词: 1C-R2PI ;  2C-R2PI ;  MATI ;  band origin ;  IE ;  isotope effect
刊名: JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
发表日期: 2008-01-25
DOI: 10.1016/j.jphotochem.2007.07.002
卷: 193, 期:2-3, 页:245-253
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Physical
研究领域[WOS]: Chemistry
英文摘要: With the good mass resolution (ml Delta m) of about 650, the Cl-35 and Cl-37 isotoporners of p-chlorophenol have been separated successfully in our home made time of flight mass spectrometer (TOF-MS). One-color (I Q, two-color (2C), resonant two-photon ionization (R2PI), and mass analyzed threshold ionization (MATI) spectra of the both isotopomers have been further recorded. Within the detection limit of our experiment, the band origins of the S-1 <- S-0 transition and the adiabatic ionization energies (IE) of Cl-35 and Cl-37 p-chlorophenol are measured to be the same. The band origins of the two isotopic species are determined to be 34813 +/- 2 cm(-1) by the 1C-R2PI experiment, and the adiabatic IE values are given to be 68094 15 and 68104 5 cm-1 by the 2C-R2PI and MATI methods for the two isotopomers of Cl-35 and Cl-37 p-chlorophenol. Analysis on the S-1 <- S-0 transition energy of para substituted phenols suggests that the band origins are all red shifted from phenol regardless of the nature of the substituent, while the inductive effect plays an important role for the Do S, transition process. The spectral properties of the two isotopomers in the electronically excited S, and ionic ground Do states are similar, whereas the vibrational frequencies of some modes are slightly different by a few wavenumbers, displaying the isotope effect. (C) 2007 Elsevier B.V. All rights reserved.
关键词[WOS]: ANALYZED THRESHOLD IONIZATION ;  DISPERSED FLUORESCENCE-SPECTRA ;  AB-INITIO ;  ROTATIONAL ISOMERS ;  MULTIPHOTON IONIZATION ;  MOLECULAR-STRUCTURES ;  CL-37 ISOTOPOMERS ;  SPECTROSCOPY ;  JET ;  EXCITATION
语种: 英语
WOS记录号: WOS:000252910100022
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/141149
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Cent S Univ, Coll Chem & Chem Engn, Changsha 410083, Peoples R China
2.Acad Sinica, Inst Atom & Mol Sci, Taipei 10617, Taiwan
3.Chinese Acad Sci, Inst Chem, State Key Lab Mol React Dynam, Beijing 100080, Peoples R China

Recommended Citation:
Huang, Jianhan,Huang, Kelong,Liu, Suqin,et al. Vibrational spectra and theoretical calculations of p-chlorophenol in the electronically excited S-1 and ionic ground D-0 states[J]. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY,2008,193(2-3):245-253.
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