Anion and cation formation following core-level photoexcitation of CO2

被引：36

作者：

Öhrwall, G

Sant'Anna, MM

Stolte, WC

Dominguez-Lopez, I

Dang, LTN

Schlachter, AS

Lindle, DW

机构：

[1] Univ Nevada, Dept Chem, Las Vegas, NV 89154 USA

[2] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA

来源：

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS | 2002年 / 35卷 / 21期

关键词：

D O I：

10.1088/0953-4075/35/21/315

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Mass-resolved anion and cation partial-yield spectra following photoexcitation of CO2 have been recorded in the vicinity of the C 1s and O 1s thresholds. Anion production was found to be site specific: a weak production of O- was observed on the pi* resonance near the C K edge, whereas both C- and O- fragments were observed near the O K edge. Due to suppression of the shape resonances that dominate the cross section above the core thresholds, the anion-partial-yield spectra at the O K edge reveal several previously unobserved electronic states. In addition, several cations such as CO2+ and O-2(+) were observed for the first time.

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页码：4543 / 4552

页数：10

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