PHOTOCHEMISTRY OF C2H2 ON NACL(100)

被引：7

作者：

DUNN, SK

EWING, GE

机构：

来源：

FARADAY DISCUSSIONS | 1993年 / 96卷

关键词：

D O I：

10.1039/fd9939600095

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：

Recent experiments show that the photochemistry of C2H2 on NaCl(100) is remarkably simple, producing only hydrogen/deuterium exchange: C2H2 + C2D2 reversible 2C2HD. A new mechanism of this surface bound reaction is proposed. We suggest that it is the substrate, NaCl, that absorbs the exciting 184.9 nm photons to produce self-trapped excitons (STE). The triplet STE then transfers its energy to adsorbed acetylene which then diffuses along the surface and reacts with its neighbours to achieve the hydrogen/deuterium exchange.

引用

页码：95 / 104

页数：10