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

Authors
Chillier, XDF Stone, BM Salama, F Allamandola, LJ
Citation
Xdf. Chillier et al., First detection of an ultraviolet transition in an ionized polycyclic aromatic hydrocarbon, J CHEM PHYS, 111(2), 1999, pp. 449-451
Citations number
16
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
JOURNAL OF CHEMICAL PHYSICS
ISSN journal
00219606 → ACNP
Volume
111
Issue
2
Year of publication
1999
Pages
449 - 451
Database
ISI
SICI code
0021-9606(19990708)111:2<449:FDOAUT>2.0.ZU;2-S
Abstract
We report the first measurement of a polycyclic aromatic hydrocarbon cation electronic transition in the ultraviolet spectral region. The UV excitatio n spectrum of the D-n-XD0 transition of the perylene cation (C20H12+) isola ted in an argon matrix was pumped with tunable, coherent radiation and moni tored 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 Instit ute of Physics. [S0021-9606(99)02226-6].