A /sup 2/. sigma. /sup +/ state of rare gas--NO van der Waals molecules probed by 1+1 multiphoton ionization spectroscopy
The previously unobserved bound--bound spectra of ArNO, KrNO, and XeNO have been observed slightly blue shifted from the (1,0) and (0,0) bands of the A /sup 2/..sigma../sup +/left-arrowX /sup 2/Pi/sub 1//sub ///sub 2/ transition of uncomplexed nitric oxide. Although the structured but incomplete spectra cannot be assigned with certainty, limits to the ground and excited state bond dissociation energies, D/sup ''//sub 0/ and D/sub 0/, respectively, can be estimated. For ArNO these limits are D/sup ''//sub 0/ greater than or equal to89 and 54 cm/sup -1/less than or equal toD/sub 0/ less than or equal to101 cm/sup -1/. The observed fragmentation of the KrNO and XeNO molecules, coupled with earlier results for MPI via the C /sup 2/Pi state, suggests that superexcited, autoionizing states of the van der Waals molecules dissociate to yield excited rare gas atoms whenever energetically possible.
- Research Organization:
- Chemical Physics Section, Health and Safety Research Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831-6125
- OSTI ID:
- 6450863
- Journal Information:
- J. Chem. Phys.; (United States), Journal Name: J. Chem. Phys.; (United States) Vol. 90:8; ISSN JCPSA
- Country of Publication:
- United States
- Language:
- English
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Molecular & Chemical Physics-- Atomic & Molecular Properties & Theory
74 ATOMIC AND MOLECULAR PHYSICS
ADDUCTS
ARGON COMPLEXES
CHALCOGENIDES
CHEMICAL BONDS
COMPLEXES
DISSOCIATION ENERGY
ELECTRONIC STRUCTURE
ENERGY
IONIZATION
KRYPTON COMPLEXES
MULTI-PHOTON PROCESSES
NITRIC OXIDE
NITROGEN COMPOUNDS
NITROGEN OXIDES
OXIDES
OXYGEN COMPOUNDS
PHOTOIONIZATION
VAN DER WAALS FORCES
XENON COMPLEXES