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Se2+


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 July, 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 (80)Se2+
StateTeomegaeomegaexeomegaeyeBealphaegammaeDebetaereTrans.nu00
The following states are from the maxima of the observed photoelectron peaks Streets and Berkowitz, 1976; vibrational structure unresolved. Additional partly resolved peaks in the region 17.3 - 20.6 eV above X 3Sigmag- of Se2. Streets and Berkowitz, 1976
D (2Piu) 41210           
C (2Sigmag-) 35650           
B (2Piu) (31620)           
b (4Sigmag-) 27260           
A (2Piu) 19200           
a (4Piu) 14440           
StateTeomegaeomegaexeomegaeyeBealphaegammaeDebetaereTrans.nu00
X2 2Pig 3/2 1940           
X1 2Pig 1/2 0           

Notes

1Value obtained by photoionization mass-spectrometry Berkowitz and Chupka, 1969, consistent with the highest of three possible spectroscopic values for D00(Se2). See note a of Se2.

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.

Streets and Berkowitz, 1976
Streets, D.G.; Berkowitz, J., Photoelectron spectroscopy of Se2 and Te2, J. Electron Spectrosc. Relat. Phenom., 1976, 9, 269. [all data]

Berkowitz and Chupka, 1969
Berkowitz, J.; Chupka, W.A., Photoionization of high-temperature vapors. VI. S2, Se2, and Te2, J. Chem. Phys., 1969, 50, 4245. [all data]


Notes

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