Two photon spectra of electronic states of Kr₂ and ArKr near the Kr* 4p ⁵5p states

Journal Article · Fri Jan 01 04:00:00 EST 1988 · Journal of Chemical Physics

DOI:https://doi.org/10.1063/1.454727· OSTI ID:5274866

Dehmer, Patricia M. ^[1]; Pratt, Stephen T. ^[1]

---

1. Argonne National Lab. (ANL), Argonne, IL (United States)

The two photon resonant, three photon ionization spectra of Kr₂ and ArKr were determined in the energy region of the Kr* 5p[3/2]₁, 5p[3/2]₂, and 5p[1/2]₀ states. The spectrum of Kr₂ displays three new band systems that arise from two photon transitions from the ground state to excited states of gerade symmetry. The analysis of the observed vibronic structure of these band systems provides new information on the dissociation energies and the potential energy curves of the low-lying dipole forbidden excited gerade states of Kr₂. A photoelectron spectrum determined following (2+1) excitation via an intense peak of the band system dissociating to Kr ¹ S₀+Kr* 5p[1/2]₀ provides the first observation of the weakly bound C ²Π_3/2u state and the repulsive B ²Π_1/2g and D ²Σ⁺_1/2g states of Kr₂. The (2+1) ionization spectra for both ArKr and KrXe were examined in the same energy region. For ArKr, a band system analogous to that observed in Kr₂ was observed near the Kr* 5p[1/2]₀ state, and an additional band system was observed near the Ar* 4s[3/2]⁰₁ state. No structure was observed for KrXe.

• Research Organization: Argonne National Laboratory (ANL), Argonne, IL (United States)
• Sponsoring Organization: USDOE; Office of Health and Environmental Research (OHER)
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 5274866
• Journal Information: Journal of Chemical Physics, Journal Name: Journal of Chemical Physics Journal Issue: 7 Vol. 88; ISSN JCPSA6; ISSN 0021-9606
• Publisher: American Institute of Physics (AIP)
• Country of Publication: United States
• Language: English

Related Subjects

640302* -- Atomic
Molecular & Chemical Physics-- Atomic & Molecular Properties & Theory
74 ATOMIC AND MOLECULAR PHYSICS
ADDUCTS
ARGON
ARGON COMPLEXES
COMPLEXES
DIMERS
DISSOCIATION ENERGY
ELECTRON SPECTROSCOPY
ELECTRONIC STRUCTURE
ELEMENTS
ENERGY
ENERGY LEVELS
EXCITED STATES
FLUIDS
GASES
IONIZATION
KRYPTON
KRYPTON COMPLEXES
MULTI-PHOTON PROCESSES
NONMETALS
PHOTOELECTRON SPECTROSCOPY
PHOTOIONIZATION
RARE GASES
SPECTROSCOPY
SYMMETRY