Gas-phase photodissociation of AuCH2+: the dissociation threshold of jet-cooled and rotationally thermalized ions

Authors
Aguirre, F Husband, J Thompson, CJ Metz, RB
Citation
F. Aguirre et al., Gas-phase photodissociation of AuCH2+: the dissociation threshold of jet-cooled and rotationally thermalized ions, CHEM P LETT, 318(4-5), 2000, pp. 466-470
Citations number
22
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
CHEMICAL PHYSICS LETTERS
ISSN journal
00092614 → ACNP
Volume
318
Issue
4-5
Year of publication
2000
Pages
466 - 470
Database
ISI
SICI code
0009-2614(20000225)318:4-5<466:GPOATD>2.0.ZU;2-4
Abstract
The photofragment spectra of jet-cooled and rotationally thermalized AuCH2 are reported. Two channels are observed: loss of H-2 and loss of CH2 with a branching ratio of 1.4:1 over the region studied. The presence of a thres hold at 322 nm for the dissociation of jet-cooled AuCH2+ to Au+ + CH2 impli es the upper limit D(0)degrees(Au+-CH2) less than or equal to 372 +/- 3 kJ mol(-1). The dissociation threshold of ions rotationally thermalized in an ion trap shifts to lower energy by the amount of parent rotational energy. (C) 2000 Elsevier Science B.V. All rights reserved.