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S2+


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 32S2+
StateTeomegaeomegaexeomegaeyeBealphaegammaeDebetaereTrans.nu00
Several additional unresolved photoelectron peaks with vertical I.P.'s of 15.58 (2Piu), 17.73, 18.10, 18.66, 23.33, 25.99 eV Dyke, Golob, et al., 1975.
For the following states all constants are obtained by photoelectron spectroscopy Dyke, Golob, et al., 1975; data of somewhat lower resolution are given by Berkowitz, 1975. Internuclear distances derived from Franck-Condon factor analyses of the photoelectron spectra Dyke, Golob, et al., 1975.
B 2Sigmag- 41820 540        (1.983)  
b 4Sigmag- 30920 580        (1.936)  
A 2Piu 22390 530        (2.042)  
a 2Piu 17440 600        (2.058)  
X 2Pig,r 470 790        (1.825)  
0 790        (1.825)  

Notes

1D00(S2) + I.P.(S) - I.P.(S2).

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.

Dyke, Golob, et al., 1975
Dyke, J.M.; Golob, L.; Jonathan, N.; Morris, A., Vacuum ultraviolet photoelectron spectroscopy of transient species. Part 5. The S2(3«SIGMA»g-) molecule, J. Chem. Soc. Faraday Trans. 2, 1975, 71, 1026-1036. [all data]

Berkowitz, 1975
Berkowitz, J., PES of high temperature vapors. VII. S2 and Te2, J. Chem. Phys., 1975, 62, 4074. [all data]


Notes

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