Photodissociation spectroscopy of the chromium trimer ion

T. Majima, K. Tono, Akira Terasaki, Y. Kawazoe, T. Kondow

研究成果: Contribution to journalArticle査読

2 被引用数 (Scopus)

抄録

The electronic and geometric structures and photodissociation dynamics of the chromium trimer ion, Cr3 +, were investigated by photodissociation spectroscopy in the photon-energy range from 1.32 to 5.52 eV. The branching fractions of the product ions, Cr+ and Cr2 +, exhibit stepwise changes at the threshold energies for dissociation into Cr++Cr2, Cr+Cr2 +, Cr++2Cr, and Cr*+Cr2 +. It is noted that Cr2 + is produced even above the threshold for atomization; the excess energy is redistributed to produce a fragment atom, Cr*, in an excited state. The photodissociation action spectrum is well explained by a mixture of simulated spectra for two nearly-degenerate structural isomers identified by density functional calculations: those having a metastable C2v structure and the most stable structure slightly distorted from the C2v one. The barrier height between the two isomers which is lower than the zero-point energy suggests that Cr3 + has an intrinsically floppy structure.

本文言語英語
ページ(範囲)23-26
ページ数4
ジャーナルEuropean Physical Journal D
43
1-3
DOI
出版ステータス出版済み - 7 1 2007
外部発表はい

All Science Journal Classification (ASJC) codes

  • 原子分子物理学および光学

フィンガープリント

「Photodissociation spectroscopy of the chromium trimer ion」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル