Selenium dimer

• Formula: Se₂
• Molecular weight: 157.92
• IUPAC Standard InChI: InChI=1S/Se2/c1-2 Copy

  
• IUPAC Standard InChIKey: XIMIGUBYDJDCKI-UHFFFAOYSA-N Copy
• CAS Registry Number: 12185-17-0
• Chemical structure:
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• Information on this page:
  • Gas phase ion energetics data
  • References
  • Notes
• Other data available:
  • Constants of diatomic molecules
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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
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron
B - John E. Bartmess

View reactions leading to Se₂⁺ (ion structure unspecified)

Electron affinity determinations

Ionization energy determinations

Appearance energy determinations

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.

Snodgrass, Coe, et al., 1989
Snodgrass, J.T.; Coe, J.V.; McHugh, K.M.; Freidhoff, C.B.; Bowen, K.H., Photoelectron Spectroscopy of the Selenium and Tellurium Containing Negative Ions: SeO₂^-, Se₂^- and Te₂^-, J. Phys. Chem., 1989, 93, 4, 1249, https://doi.org/10.1021/j100341a016 . [all data]

Potts and Novak, 1983
Potts, A.W.; Novak, I., Ultraviolet photoelectron spectra of selenium and tellurium, J. Electron Spectrosc. Relat. Phenom., 1983, 28, 267. [all data]

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]

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]

Barrow, Burton, et al., 1970
Barrow, R.F.; Burton, W.G.; Callomon, J.H., Absorption spectrum of gaseous 80Se₂ in the region 51500-55000 cm-1, J. Chem. Soc. Faraday Trans., 1970, 66, 2685. [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]

Uy and Drowart, 1969
Uy, O.M.; Drowart, J., Mass spectrometric determination of the dissociation energies of the molecules BiO, BiS, BiSe and BiTe, J. Chem. Soc. Faraday Trans., 1969, 65, 3221. [all data]

Uy, Muenow, et al., 1968
Uy, O.M.; Muenow, D.W.; Ficalora, P.J.; Margrave, J.L., Mass spectrometric studies at high temperatures. Part 30. Vaporization of Ga₂S₃, Ga₂Se₃ and Ga₂Te₃, and stabilities of the gaseous gallium chalcogenides, J. Chem. Soc. Faraday Trans., 1968, 64, 2998. [all data]

Notes

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• Symbols used in this document:
  

  AE	Appearance energy
  EA	Electron affinity

• Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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