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ArHg+


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, 1975

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 202Hg40Ar+
StateTeomegaeomegaexeomegaeyeBealphaegammaeDebetaereTrans.nu00
A (Ja=5/2)1/2 35444.5 1 104.5 H 1.5  0.05789 2 0.00076  6.95E-8 2.3E-09 2.9544 A rarrow X RV 35447.2 H
missing citation; Bridge, 1970; Hougen, 1972
X 2Sigma+ 0 99.0 H 1.5  [0.06142]   [9.78E-8]  [2.8683]  

Notes

1The observed isotope shifts closely parallel those of the corresponding transition in Hg+, i.e. 5d9 6s2 2D5/2 rarrow 5d10 6s 2S1/2.
2Large Omega-type doubling, Delta nufe= +pV(J+1/2)- ... where pV= +5.30 Bv. Theory Hougen, 1972 predicts p ~ +6B.

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.

Bridge, 1970
Bridge, N.J., The emission spectrum of HgAr+, Chem. Commun., 1970, 358. [all data]

Hougen, 1972
Hougen, J.T., An interesting example of Hund's coupling case (c) in HgAr+, J. Mol. Spectrosc., 1972, 42, 381. [all data]


Notes

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