Electronic gas-phase spectra of larger polyacetylene cations

被引：28
|
作者：
Dzhonson, Anatoly [1 ]
Jochnowitz, Evan B. [1 ]
Maier, John P. [1 ]
机构：
[1] Univ Basel, Dept Chem, CH-4056 Basel, Switzerland
来源：
JOURNAL OF PHYSICAL CHEMISTRY A | 2007年 / 111卷 / 10期
关键词：
D O I：
10.1021/jp067439j
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 origin bands of the A (2)Pi-X (2)Pi electronic transition for three new linear polyacetylene cation chains, HC12H+, HC14H+, and HC16H+, have been recorded in the gas phase at similar to 30 K, located at 924.7, 1034.6, and 1144.0 nm. The absorption spectra were observed using a two-color two-photon ion-photodissociation experiment that utilizes the cooling capabilities of a 22-pole ion trap. Such spectra allow a direct comparison between laboratory and astrophysical data; however, no matches were found between the experimentally determined origin bands and the known diffuse interstellar bands.
引用
收藏
页码：1887 / 1890
页数：4
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