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HHe+2


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 4HeH++
StateTeomegaeomegaexeomegaeyeBealphaegammaeDebetaereTrans.nu00
Potential functions of several states calculated by Bates and Carson, 1956, Piacentini and Salin, 1974. Only A 2Sigma+ [from H(1S) + He++] has a minimum. Satisfactory agreement with charge exchange experiments [He++ + H rarrow He+ + H+].
A 2Sigma+ (322378) 1 (950) 1 (39) 1       (2.059) 1  
X 2Sigma+Repulsive state (corresponding to He+ + H+).

Notes

1Theoretical values Bates and Carson, 1956; Te is relative to He+ + H+.

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.

Bates and Carson, 1956
Bates, D.R.; Carson, T.R., Exact wave functions of HeH2+, Proc. R. Soc. London A, 1956, 234, 207-217. [all data]

Piacentini and Salin, 1974
Piacentini, R.D.; Salin, A., Molecular treatment of the He2+-H collisions, J. Phys. B:, 1974, 7, 13, 1666-1678. [all data]


Notes

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