Single-photon ionization study of the vibrational structure in the ground state of Xe+2
- 14 December 1992
- journal article
- Published by IOP Publishing in Journal of Physics B: Atomic, Molecular and Optical Physics
- Vol. 25 (23) , 5101-5108
- https://doi.org/10.1088/0953-4075/25/23/013
Abstract
The vibrationally resolved spectra of the ground state A 2 Sigma +u of Xe+2 were observed at wavelengths from 1023 AA to 1116 AA by using the method of single-photon ionization with synchrotron radiation as a light source. A long progression beginning at v=0 was clearly observed in the threshold electron spectra for the first time. The spectroscopic parameters for the ground state of Xe+2 (average mass=131.3, 131.3) calculated from the experimental data are: omega e=122.9 (+or-0.1) cm-1 omega e chi e=0.481 (+or-0.001) cm-1, the dissociation energy D0=7849 (+or-9) cm-1, the zero point energy 61.3 (+or-0.1) cm-1, Te=90 119 (+or-8) cm-1, and the adiabatic ionization potential 90 170 (+or-8) cm-1. Autoionizing Rydberg series were found and assigned to converge to the C 2 Pi 32u/ and B2 Pi 12g/ states of Xe+2.Keywords
This publication has 16 references indexed in Scilit:
- Photoelectron spectra of xenon dimer (Xe2*) obtained by resonantly enhanced multiphoton ionizationThe Journal of Physical Chemistry, 1987
- Gerade electronic states of Xe2 observed using resonantly enhanced multiphoton ionizationThe Journal of Chemical Physics, 1986
- Dissociation processes of O2in the VUV region 500-700 AAJournal of Physics B: Atomic and Molecular Physics, 1985
- Angular distributions of photoelectrons from the autoionising states between the2P3/2and2P1/2ionisation thresholds of Kr and XeJournal of Physics B: Atomic and Molecular Physics, 1985
- Dissociative photoionisation of N2from threshold to 29 eVJournal of Physics B: Atomic and Molecular Physics, 1984
- Systematics of Rydberg structure in the spectra of the rare gas dimers between the atomic 2Po3/2 and 2Po1/2 fine-structure thresholdsThe Journal of Chemical Physics, 1981
- Electronic structure of the noble gas dimer ions. I. Potential energy curves and spectroscopic constantsThe Journal of Chemical Physics, 1978
- Photoelectron spectra of Ar2 and Kr2 and dissociation energies of the rare gas dimer ionsThe Journal of Chemical Physics, 1978
- Photoelectron spectrum of the Xe2 van der Waals moleculeThe Journal of Chemical Physics, 1977
- Vacuum ultraviolet absorption spectrum of the van der Waals molecule Xe2. I. Ground state vibrational structure, potential well depth, and shapeThe Journal of Chemical Physics, 1974