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

页码：1887 / 1890

页数：4

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