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Lithium, compound with potassium (1:1)


Constants of diatomic molecules

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled by: K.P. Huber and G. Herzberg

Data collected through January, 1977

Symbols used in the table of constants
SymbolMeaning
State electronic state and / or symmetry symbol
Te minimum electronic energy (cm-1)
ωe vibrational constant – first term (cm-1)
ωexe vibrational constant – second term (cm-1)
ωeye vibrational constant – third term (cm-1)
Be rotational constant in equilibrium position (cm-1)
αe rotational constant – first term (cm-1)
γe rotation-vibration interaction constant (cm-1)
De centrifugal distortion constant (cm-1)
βe rotational constant – first term, centrifugal force (cm-1)
re internuclear distance (Å)
Trans. observed transition(s) corresponding to electronic state
ν00 position of 0-0 band (units noted in table)
Diatomic constants for (7)Li(39)K
StateTeomegaeomegaexeomegaeyeBealphaegammaeDebetaereTrans.nu00
B (17578) (130) H 1         (B larrow X) (R) 17539 H
missing citation; Weizel and Kulp, 1930
X 1Sigma+ 0 (207) H   (0.265) 2     (3.27) 2 3  
Dagdigian and Wharton, 1972

Notes

1Fragment
2Estimated constants for 7Li39K Dagdigian and Wharton, 1972. See also Cavaliere, Ferrante, et al., 1975.
3Mol. beam rf el. reson. 4
4muel = (7Li39K; v=0,J=1) = 3.45 D; also values of eqQ.

References

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Weizel and Kulp, 1930
Weizel, W.; Kulp, M., Uber die bandensysteme der alkalidampfe, Ann. Phys. (Leipzig), 1930, 4, 971. [all data]

Dagdigian and Wharton, 1972
Dagdigian, P.J.; Wharton, L., Molecular beam electric deflection and resonance spectroscopy of the heteronuclear alkali dimers: 39K7Li, Rb7Li, 39K23Na, Rb23Na, and 133Cs23Na, J. Chem. Phys., 1972, 57, 1487. [all data]

Cavaliere, Ferrante, et al., 1975
Cavaliere, P.; Ferrante, G.; Lo Cascio, L., Interpolated values of spectroscopic constants of asymmetric alkali molecules and molecular ions, J. Chem. Phys., 1975, 62, 4753. [all data]


Notes

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