PHOTOELECTRON ANGULAR-DISTRIBUTION PARAMETERS OF VALENCE SHELL IONIZATIONS OF ALLENE AND TRANSIENT KETENE AND THIOKETENE

Citation
J. Kreile et al., PHOTOELECTRON ANGULAR-DISTRIBUTION PARAMETERS OF VALENCE SHELL IONIZATIONS OF ALLENE AND TRANSIENT KETENE AND THIOKETENE, Journal of molecular structure, 300, 1993, pp. 149-156
Citations number
26
Categorie Soggetti
Chemistry Physical
ISSN journal
00222860
Volume
300
Year of publication
1993
Pages
149 - 156
Database
ISI
SICI code
0022-2860(1993)300:<149:PAPOVS>2.0.ZU;2-C
Abstract
Photoelectron angular distribution parameters for the X2E ionization o f allene and, for the first time, for ionizations of reaction intermed iates, namely the X2B1 ionization of ketene and the X2B1, A2B2 and B2B 1 ionizations of thioketene have been measured using synchrotron radia tion up to photon energies of 23.0, 20.0 and 19.5 eV, respectively. Th e beta curves exhibit several structures which could stem from resonan ce phenomena. Indications of an autoionization resonance were found in the X2E ionization of allene and for a shape resonance in the X2B1 io nization of thioketene.