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Cesium, 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: Klaus P. Huber and Gerhard H. 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 (39)K133Cs
StateTeomegaeomegaexeomegaeyeBealphaegammaeDebetaereTrans.nu00
Diffuse absorption band at 18558 cm-1.
Walter and Barratt, 1928
X 1Sigma+ 0 (66.2) 1        (4.28) 1  

Notes

1Interpolated values based on the constants for K2 and Cs2 Cavaliere, Ferrante, et al., 1975.

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.

Walter and Barratt, 1928
Walter, J.M.; Barratt, S., The existence of intermetallic compounds in the vapour state. The spectra of the alkali metals, and of their alloys with each other, Proc. R. Soc. London A, 1928, 119, 257. [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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