Singlet-triplet anticrossings between the doubly excited 3 /sup 1/K state and the g(3d) /sup 3/. sigma. /sup +//sub g/ state of H/sub 2/

Journal Article · Wed Feb 15 04:00:00 EST 1978 · J. Chem. Phys.; (United States)

OSTI ID:5202079

Freund, R S; Miller, T A; Jost, R; Lombardi, M

The 3 /sup 1/K, v=1 level of H/sub 2/ has recently been interpreted as an adiabatic mixture of vibronic levels of the EF /sup 1/..sigma../sub s//sup +/ and the GK /sup 1/..sigma../sub g//sup +/ double minimum states, with currently undetermined nonadiabatic corrections. Anticrossing spectra, which are sensitive to these state mixings, have been observed for the 3 /sup 1/K, v=1, N level and the (3d) /sup 3/..sigma../sub g//sup +/, v=1, N level of ortho-H/sub 2/ for the rotational levels N=1 and 3. Linewidths, which are determined by either the singlet-triplet Fermi-contact hyperfine interaction or the spin-orbit interaction, as well as magnetic g values, help provide a detailed description of the 3 /sup 1/K state. Measured singlet-triplet zero field separations are combined with previously published values to provide the best available value for the energy T/sub 0/(a /sup 3/..sigma..) of the lowest triplet level (a /sup 3/..sigma.., v=0, N=0) with respect to the ground state, 95076.36 +- 0.20 cm/sup -1/.

• Research Organization: Bell Laboratories, Murray Hill, New Jersey 07974
• OSTI ID: 5202079
• Journal Information: J. Chem. Phys.; (United States), Journal Name: J. Chem. Phys.; (United States) Vol. 68:4; ISSN JCPSA
• Country of Publication: United States
• Language: English

Related Subjects

640302* -- Atomic
Molecular & Chemical Physics-- Atomic & Molecular Properties & Theory
74 ATOMIC AND MOLECULAR PHYSICS
CRYOGENIC FLUIDS
ELEMENTS
EMISSION SPECTRA
ENERGY LEVELS
ENERGY-LEVEL TRANSITIONS
EXCITATION
EXCITED STATES
FLUIDS
HYDROGEN
LINE WIDTHS
NONMETALS
SPECTRA