SYMMETRY SELECTION-RULES VS VIBRONIC COUPLING IN RESONANT SELECTIVE VIBRATIONAL-EXCITATION OF POLYATOMIC-MOLECULES BY ELECTRON-IMPACT

被引：19

作者：

ARFA, MB

TRONC, M

机构：

[1] Laboratoire de Chimie Physique1 1 Associé au C.N.R.S. UA 176., Université Pierre et Marie Curie, 11, Rue Pierre Marie Curie

来源：

JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA | 1990年 / 50卷 / 1-2期

关键词：

Acetylene; -; Benzene; Electrons; Impact; Ethylene; Formaldehyde;

D O I：

10.1016/0368-2048(90)80013-Z

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

In the unsaturated polyatomic molecule series: C6H6, C2H4, CH3CHO, H2CO, (CE3)2CO, CH2CHCHCH2, C2H2, HCN and CH3CN, all presenting an overlap between a low energy π{black star} (1-2 eV) and a very broad σ{black star} (4-8 eV) shape resonance, we show that the vibronic coupling process between the π{black star} and the σ{black star} resonances can explain the resonant excitation of the non-totally-symmetric vibrational modes without invoking an s(l=0) wave in the scattering process. © 1990.

引用

页码：117 / 128

页数：12

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