Vibrationally resolved O is photoelectron spectrum of CO2: Vibronic coupling and dynamic core-hole localization

被引：79

作者：

Kivimaki, A

Kempgens, B

Maier, K

Koppe, HM

Piancastelli, MN

Neeb, M

Bradshaw, AM

机构：

[1] UNIV OULU,DEPT PHYS SCI,FIN-90570 OULU,FINLAND

[2] UNIV ROMA TOR VERGATA,DEPT CHEM SCI & TECHNOL,I-00133 ROME,ITALY

[3] MAX PLANCK GESELL,FRITZ HABER INST,D-14195 BERLIN,GERMANY

来源：

PHYSICAL REVIEW LETTERS | 1997年 / 79卷 / 06期

关键词：

D O I：

10.1103/PhysRevLett.79.998

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The C and O 1s photoelectron lines of the CO2- molecule in the gas phase have been measured with vibrational resolution in the threshold region. The vibrational fine structure on the O 1s line is completely dominated by the antisymmetric stretching mode with a frequency of 307 (+/-3) meV. This mode can be excited only via vibronic coupling, as predicted by Domcke and Cederbaum [Chem. Phys. 25, 189 (1977)], and provides a mechanism for dynamic core-hole localization. Relaxation effects are found to affect strongly the vibrational intensity distribution of the photoelectron line.

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页码：998 / 1001

页数：4

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