PHOTOINDUCED CHARGE-TRANSFER DISSOCIATION OF HYDROGEN HALIDES ON SILVER AND POTASSIUM

被引：21

作者：

DIXONWARREN, SJ ^{[1
]}

POLANYI, JC ^{[1
]}

STANNERS, CD ^{[1
]}

XU, GQ ^{[1
]}

机构：

[1] UNIV TORONTO,DEPT CHEM,TORONTO M5S 1A1,ONTARIO,CANADA

来源：

JOURNAL OF PHYSICAL CHEMISTRY | 1990年 / 94卷 / 15期

关键词：

D O I：

10.1021/j100378a011

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 photodissociation of HCl(ad) and HI(ad) on Xe/Ag(111) and Xe/K/Ag(111) surfaces at 248, 308, and 350 nm has been studied by measuring the time-of-flight spectra of H atoms recoiling from the surface. In each case, HCl(ad) and HI(ad), the lower work function metal gave photodissociation out to much longer wavelengths, indicative of a charge-transfer mechanism. For HCl(ad) on Xe/K/Ag(111) the photoinduced charge-transfer dissociation occurred at photon energies well below the bond dissociation energy, ruling out direct dissociation of the adsorbate. © 1990 American Chemical Society.

引用

页码：5664 / 5666

页数：3

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