Ionization of ammonia molecules by collision with metastable neon atoms

被引：34

作者：

Ben Arfa, M

Lescop, B

Cherid, M

Brunetti, B

Candori, P

Malfatti, D

Falcinelli, S

Vecchiocattivi, F ^{[1
]}

机构：

[1] Univ Perugia, Ist Tecnol Chim, I-06125 Perugia, Italy

[2] Univ Perugia, Dipartimento Chim, I-06123 Perugia, Italy

[3] Univ Brest, Fac Sci, Lab Phys Collis Elect & Atom, F-29285 Brest, France

来源：

CHEMICAL PHYSICS LETTERS | 1999年 / 308卷 / 1-2期

关键词：

D O I：

10.1016/S0009-2614(99)00569-2

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：

The ionization of ammonia molecules in collision with metastable neon atoms has been studied by measuring the energy spectrum of emitted electrons and the mass spectrum of product ions. The results show that nascent NH3+ ions are formed in the mound, X(2)A'(1), and in the first excited, A E-2, states. The latter then gives rise to dissociation leading to NH2+ ion fragments. The NH2+/NH3+ ratio is much lower than in case of Ne I photoionization, indicating that the particle interaction strongly influences the ionization dynamics. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：71 / 77

页数：7

共 31 条

[1] TOTAL CROSS-SECTION FOR THE IONIZATION OF MOLECULES BY THERMAL-ENERGY COLLISION WITH METASTABLE NEON ATOMS [J].