title: Resolved (v1, v2= 1) Combination Vibrational States of CF3Fragments in the Photofragment Translational Spectra of CF3I.
abstract: The photodissociation of CF3I → CF3(v1,v2) + I*/I has been investigated at 248, 266, and 277 nm with our high resolution mini-TOF photofragment translational spectrometer. Based on the theoretical calculations of Clary and of Bowman et al., now in this manuscript, we assign 701 cm-1to the CF symmetric stretch (breathing) ν1mode, and 1086 cm-1to the umbrella ν2mode of the CF3fragment. In the obtained TOF spectra of I+from the I* channel, situated in the 701 cm-1gaps between the original series of (v1, 0) vibrational peaks, a new series of weaker (v1, 1) vibrational peaks are partially resolved. These observed new peaks with 1086 cm-1ν2mode excitation have never been reported in previous literature. In the TOF spectra of I+from the I channel, the new series of (v1, 1) peaks are also partially resolved. However, these spectra of I channel are less satisfactory, because for higher Eavland higher ET, the higher resolution of PTS is required. The potential energy at the curve crossing point and the excitation of CF3(v1, 2) and (v1, 3) vibrational states have been also analyzed.
authors.affiliation: Beijing National Laboratory of Molecular Sciences, State Key Laboratory of Molecular Reaction Dynamics, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, China.|University of Chinese Academy of Sciences , Beijing 100049, China.
authors.forename: Dan
authors.initials: D
authors.lastname: Lin
authors.affiliation: Institute of Physics, Chinese Academy of Sciences , Beijing 100190, China.
authors.forename: Lili
authors.initials: L
authors.lastname: Hu
authors.affiliation: Beijing National Laboratory of Molecular Sciences, State Key Laboratory of Molecular Reaction Dynamics, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, China.|University of Chinese Academy of Sciences , Beijing 100049, China.
authors.forename: Sheng
authors.initials: S
authors.lastname: Liu
authors.affiliation: Beijing National Laboratory of Molecular Sciences, State Key Laboratory of Molecular Reaction Dynamics, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, China.|University of Chinese Academy of Sciences , Beijing 100049, China.
authors.forename: Wenke
authors.initials: W
authors.lastname: Qi
authors.affiliation: Beijing National Laboratory of Molecular Sciences, State Key Laboratory of Molecular Reaction Dynamics, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, China.
authors.forename: Min
authors.identifier: http://orcid.org/0000-0001-5826-5149
authors.initials: M
authors.lastname: Cheng
authors.affiliation: Beijing National Laboratory of Molecular Sciences, State Key Laboratory of Molecular Reaction Dynamics, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, China.
authors.forename: Yikui
authors.initials: Y
authors.lastname: Du
authors.affiliation: Beijing National Laboratory of Molecular Sciences, State Key Laboratory of Molecular Reaction Dynamics, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, China.
authors.forename: Qihe
authors.initials: Q
authors.lastname: Zhu