Dynamics of oxygen Rydberg atom generation following O 1s inner-shell excitation of H2O

被引：5

作者：

Gejo, T. ^{[1
]}

Ikegami, T. ^{[1
]}

Honma, K. ^{[1
]}

Takahashi, O. ^{[2
]}

Shigemasa, E. ^{[3
]}

Hikosaka, Y. ^{[4
]}

Tamenori, Y. ^{[5
]}

机构：

[1] Univ Hyogo, Kamigori, Hyogo 6781297, Japan

[2] Hiroshima Univ, Higashihiroshima 7398512, Japan

[3] Inst Mol Sci, UVSOR Facil, Okazaki, Aichi 4448585, Japan

[4] Niigata Univ, Dept Environm Sci, Nishi Ku, Niigata 9502181, Japan

[5] JASRI, Sayo, Hyogo 6795198, Japan

来源：

JOURNAL OF CHEMICAL PHYSICS | 2014年 / 140卷 / 21期

关键词：

POST-COLLISION-INTERACTION; POSTCOLLISION INTERACTIONS; PHOTOELECTRON RECAPTURE; THRESHOLD; ELECTRONS; DENSITY; ENERGY;

D O I：

10.1063/1.4880557

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 emission of low-energy electrons from H2O has been investigated at photon excitation energies in the vicinity of the O 1s ionization threshold. Neutral oxygen Rydberg atoms (O*) were found to form, and the correlation between the initial inner-shell excited state of H2O and the Rydberg state of O* was determined. The initially excited electron in a Rydberg orbital is shown to remain associated with O* even after the cleavage of two O-H bonds. We also show that the energy discrepancy between two Rydberg states of H2O and O* can be explained by the influence of the post-collision interaction, which becomes stronger as the excitation energy approaches the 1s ionization threshold. (C) 2014 AIP Publishing LLC.

引用

页数：7

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