Electron-induced reactions in condensed films of acetonitrile and ethane

被引:36
作者
Ipolyi, Imre [1 ]
Michaelis, Wilfried [1 ]
Swiderek, Petra [1 ]
机构
[1] Univ Bremen, Inst Appl & Phys Chem, Facbereich 2, D-28334 Bremen, Germany
关键词
D O I
10.1039/b612261b
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Reactions in pure and mixed films Of C2H6 and CD3CN deposited on a An surface at 35 K have been induced by low-energy electrons and investigated by Thermal Desorption Spectrometry (TDS). The incident electron energy (E-0) was varied between 5 and 16 eV and a number of different products were identified. Beside the main products, CD4, CD3H, and C2D6, molecules resulting from atom scrambling during radical chain reactions (C2H5D) and recombination products (CD3CD2CN and C2H5CD3) were identified while others were characteristically absent. The quantity of the different products varied with E-0. The observed electron-driven processes arc in accord with previous findings from gas phase experiments on dissociative electron attachment and electron impact ionization. On this basis, reaction mechanisms leading to the formation of the observed products are suggested for different ranges of E-0.
引用
收藏
页码:180 / 191
页数:12
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