Vibrationally resolved N 1s absorption spectra of the acrylonitrile molecule

被引:9
|
作者
Ilakovac, Vita [1 ,2 ]
Houari, Ymene [1 ]
Carniato, Stephane [1 ]
Gallet, Jean-Jacques [1 ]
Kukk, Edwin [3 ]
Horvatic, Davor [4 ]
机构
[1] Univ Paris 06, CNRS UMR 7614, Lab Chim Phys Matiere & Rayonnement, F-75231 Paris, France
[2] Univ Cergy Pontoise, F-95031 Cergy Pontoise, France
[3] Univ Turku, Dept Phys, FI-20014 Turku, Finland
[4] Univ Zagreb, Dept Phys, Zagreb 10001, Croatia
关键词
PHOTOELECTRON-SPECTROSCOPY; HYDROCARBONS; IONIZATION; EXCITATION; ADSORPTION; ENERGIES; BINDING;
D O I
10.1103/PhysRevA.85.062521
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
Besides two strong pi(*)(perpendicular to 1) and pi(parallel to)* resonances in the 398- to 400-eV energy range, N 1s near edge x-ray absorption fine structure spectra of acrylonitrile molecules have a less intense 401- to 403-eV doublet. The two components correspond to the N 1s -> pi(*)(perpendicular to 2) and N 1s -> D parallel to* transitions, where D parallel to* is a diffuse state with strong Rydberg character. The vibrational analysis shows that in the D parallel to* excited state, two low- energy out-of -plane normal modes are strongly excited. The p(perpendicular to 2)* excitation triggers a set of in-plane vibrations, in particular, two C=C-C N bendings of the molecule.
引用
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页数:6
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