Trapping-desorption and direct-inelastic scattering of HCl from MgO(100)

被引：16

作者：

Korolik, M ^{[1
]}

Arnold, DW ^{[1
]}

Johnson, MJ ^{[1
]}

Suchan, MM ^{[1
]}

Reisler, H ^{[1
]}

Wittig, C ^{[1
]}

机构：

[1] Univ So Calif, Dept Chem, Los Angeles, CA 90089 USA

来源：

CHEMICAL PHYSICS LETTERS | 1998年 / 284卷 / 3-4期

关键词：

D O I：

10.1016/S0009-2614(97)01421-8

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：

A molecular beam of hyperthermal HCl (J = 0) impinges on a MgO(100) surface and the scattered HCl is probed state-selectively by using multiphoton ionization. Two regimes are identified. At incident energies of 0.54 and 0.90 eV, scattering is predominantly direct-inelastic, whereas at an incident energy of 0.11 eV, HCl is predominantly trapped and subsequently desorbs. For example, at 0.11 eV, the angular distribution of the HCl product is cosine-like, whereas at 0.54 and 0.90 eV, the scattered HCl is observed to peak near the specular angle. (C) 1998 Published by Elsevier Science B.V.

引用

页码：164 / 170

页数：7

共 34 条

[1] CHARGE SEPARATION AND COVALENT BONDING IN METAL-OXIDE SURFACES - A LOCAL-DENSITY FUNCTIONAL-STUDY ON THE MGO(001) SURFACE [J].