First detection of an ultraviolet transition in an ionized polycyclic aromatic hydrocarbon

被引：14

作者：

Chillier, XDF

Stone, BM

Salama, F

Allamandola, LJ

机构：

[1] NASA, Astrochem Lab, Ames Res Ctr, Moffett Field, CA 94035 USA

[2] San Jose State Univ, Dept Chem, San Jose, CA 95192 USA

来源：

JOURNAL OF CHEMICAL PHYSICS | 1999年 / 111卷 / 02期

关键词：

D O I：

10.1063/1.479323

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：

We report the first measurement of a polycyclic aromatic hydrocarbon cation electronic transition in the ultraviolet spectral region. The UV excitation spectrum of the D-n-XD0 transition of the perylene cation (C20H12+) isolated in an argon matrix was pumped with tunable, coherent radiation and monitored using the vibronic bands of the D-1(B-2(3g)) --> ((2)A(u))D-0 system. The two component band peaks at 244 and 250.2 nm, close to the S-2(B-1(3u)) <-- ((1)A(g))S-0 transition in neutral perylene. (C) 1999 American Institute of Physics. [S0021-9606(99)02226-6].

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页码：449 / 451

页数：3

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