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Selenium monotelluride


Gas phase ion energetics data

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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 as indicated in comments:
LBLHLM - Sharon G. Lias, John E. Bartmess, Joel F. Liebman, John L. Holmes, Rhoda D. Levin, and W. Gary Mallard
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi

Ionization energy determinations

IE (eV) Method Reference Comment
8.5 ± 0.2EIGrade, Wienecke, et al., 1983LBLHLM
8.8 ± 0.3EIDrowart and Smoes, 1977LLK

Constants of diatomic molecules

Go To: Top, Gas phase ion energetics data, References, Notes

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 November, 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 128Te78Se
StateTeomegaeomegaexeomegaeyeBealphaegammaeDebetaereTrans.nu00
Unclassified absorption bands 43900 - 46500 cm-1.
Joshi and Sharma, 1967
D2 42232.3 353.3 H 1.0        D2 larrow X2 V 40703.0 HQ
missing citation; Ahmed, Barrow, et al., 1975
D1 42168.4 355.6 H 1.0        D1 larrow X1 V 42188.0 HQ
missing citation; Ahmed, Barrow, et al., 1975
C 1 1          C rarrow X2 22490
Ahmed, Barrow, et al., 1975
StateTeomegaeomegaexeomegaeyeBealphaegammaeDebetaereTrans.nu00
B2 1 23596 1 [191.5]   [0.048]     [2.69] B2 rarrow X2 21986
Ahmed, Barrow, et al., 1975
B1 0+ 23393 1 [189]   0.0497     2.647 B1 rarrow X2 21781
Ahmed, Barrow, et al., 1975
           B1 rarrow X1 23329.1
Ahmed, Barrow, et al., 1975
A 0+ 1          A rarrow X1 22052
Ahmed, Barrow, et al., 1975
StateTeomegaeomegaexeomegaeyeBealphaegammaeDebetaereTrans.nu00
X2 1 1547.2 2 317.39 3 0.7175  (0.0619) 4     (2.372)  
X1 0+ 0 316.24 3 0.738  (0.0619) 4 (0.00018)  (0.095E-7)  (2.372)  

Notes

1All constants for these states are derived from laser-excited fluorescence spectra. In carrying out the analysis it was necessary to assume the value of the rotational constant Be for the ground state Ahmed, Barrow, et al., 1975, see 4.
2From the B1 rarrow X1 and B1 rarrow X2 flourescence series.
3Combined results from fluorescence and absorption spectra.
4Estimated value Ahmed, Barrow, et al., 1975 assuming re (TeSe) ~ 1/2[re(Te2)+re(Se2)].
5Thermochemical value (mass-spectrometry) Porter and Spencer, 1960, corrected for new values of D00(Se2) and D00(Te2).
6The band structure is somewhat diffuse suggesting predissociation Joshi and Sharma, 1967, Ahmed, Barrow, et al., 1975.

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.

Grade, Wienecke, et al., 1983
Grade, M.; Wienecke, J.; Rosinger, W.; Hirschwald, W., Electron impact investigation of the molecules SeS(g) and TeSe(g) under high-temperature equilibrium conditions, Ber. Bunsen-Ges. Phys. Chem., 1983, 87, 355. [all data]

Drowart and Smoes, 1977
Drowart, J.; Smoes, S., Determination by the mass spectrometric Knudsen cell method and discussion of the dissociation energies of the molecules Se2(g), SSe(g) and SeTe(g), J. Chem. Soc. Faraday Trans. 2, 1977, 73, 1755. [all data]

Joshi and Sharma, 1967
Joshi, M.M.; Sharma, D., The ultra-violet absorption spectrum of TeSe, Proc. Phys. Soc. London, 1967, 90, 1159. [all data]

Ahmed, Barrow, et al., 1975
Ahmed, F.; Barrow, R.F.; Yee, K.K., Fluorescence and absorption spectra of gaseous TeSe, J. Phys. B:, 1975, 8, 649. [all data]

Porter and Spencer, 1960
Porter, R.F.; Spencer, C.W., Stabilities of the gaseous molecules, BiSe, BiTe, and SbTe, J. Chem. Phys., 1960, 32, 943. [all data]


Notes

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