A NOTE ON DISSOCIATIVE PHOTOIONIZATION OF NEOPENTANE IN THE 10-30 EV PHOTON ENERGY-RANGE

Authors
CAULETTI C RACHLEWKALLNE E ADAM MY STRANGES S SORENSEN S KARAWAJCZYK A KIRM M
Citation
C. Cauletti et al., A NOTE ON DISSOCIATIVE PHOTOIONIZATION OF NEOPENTANE IN THE 10-30 EV PHOTON ENERGY-RANGE, Chemical physics, 188(2-3), 1994, pp. 387-393
Citations number
19
Categorie Soggetti
Physics, Atomic, Molecular & Chemical
Journal title
Chemical physics → ACNP
ISSN journal
03010104
Volume
188
Issue
2-3
Year of publication
1994
Pages
387 - 393
Database
ISI
SICI code
0301-0104(1994)188:2-3<387:ANODPO>2.0.ZU;2-U
Abstract
The photofragmentation of neopentane in the photon energy range 10-30 eV with synchrotron radiation is analysed and compared with previous d ata on mass and photoelectron spectra of this molecule. A broad maximu m due to a shape resonance in the ion yield of the most abundant fragm ent ions is observed around 16 eV photon energy along with Rydberg ser ies converging to the 2a1(-1) ionization threshold. The analysis of th e branching ratios of the main fragment ions hints at a preferential d ecay of the shape resonance through the ionization channel 3t2(-1).