Molecular Rydberg states. VII. Water
The optical absorption spectra of H/sub 2/O and D/sub 2/O are reported at various pressures for 2000> or =lambda> or =950 A. The 1670 A band is vibrationally structured (..nu../sub 2/ bend) and the excited /sup 1/B/sub 1/ state contains a considerable intravalence 4a/sub 1/ component. The 1280 A state 3sa/sub 1/; /sup 1/A/sub 1/ is linear and dominantly Rydberg. A Renner--Teller analysis of the 1280 A band leads to detection of a perturbing state at 1365 A which may be assigned as a bent, heavily Rydberg 3sa/sub 1/; /sup 1/B/sub 1/ state. A reanalysis of K-shell excitation spectra bolsters this 3sa/sub 1/; /sup 1/B/sub 1/ assignment. Isotope shift studies in the 1130--980 A region lead to some vibronic reassignments. The terminal state of the 968 A absorption band is a linear 5sa/sub 1/; /sup 1/A/sub 1/ state. In sum, a total of 21 electronic states, comprising fragments of six Rydberg series, have been assigned.
- Research Organization:
- Coates Chemical Laboratories, Louisiana State University, Baton Rouge, Louisiana 70803
- OSTI ID:
- 7218494
- Journal Information:
- J. Chem. Phys.; (United States), Journal Name: J. Chem. Phys.; (United States) Vol. 67:6; ISSN JCPSA
- Country of Publication:
- United States
- Language:
- English
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400301 -- Organic Chemistry-- Chemical & Physicochemical Properties-- (-1987)
640300* -- Atomic
Molecular & Chemical Physics
74 ATOMIC AND MOLECULAR PHYSICS
ABSORPTION SPECTRA
ELECTRONIC STRUCTURE
ENERGY LEVELS
EXCITED STATES
HEAVY WATER
HYDROGEN COMPOUNDS
OXYGEN COMPOUNDS
SPECTRA
ULTRAVIOLET SPECTRA
VIBRATIONAL STATES
WATER