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HeKr


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 September, 1976

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 4He(84)Kr
StateTeomegaeomegaexeomegaeyeBealphaegammaeDebetaereTrans.nu00
X 1Sigma+ 2          3.75 1  

Notes

1From molecular beam scattering measurements Chen, Siska, et al., 1973.
2Doubtful whether any level other than v=0 is bound Bobetic and Barker, 1976.

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.

Chen, Siska, et al., 1973
Chen, C.H.; Siska, P.E.; Lee, Y.T., Intermolecular potentials from crossed beam differential elastic scattering measurements. VIII. He+Ne, He+Ar, He+Kr, and He+Xe, J. Chem. Phys., 1973, 59, 2, 601-610. [all data]

Bobetic and Barker, 1976
Bobetic, M.V.; Barker, J.A., Vibrational levels of heteronuclear rare gas van der Waals molecules, J. Chem. Phys., 1976, 64, 2367-2369. [all data]


Notes

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