Methyl diselenide

• Formula: C₂H₆Se₂
• Molecular weight: 187.99
• IUPAC Standard InChI: InChI=1S/C2H6Se2/c1-3-4-2/h1-2H3 Copy

  
• IUPAC Standard InChIKey: VLXBWPOEOIIREY-UHFFFAOYSA-N Copy
• CAS Registry Number: 7101-31-7
• Chemical structure:
  This structure is also available as a 2d Mol file or as a computed 3d SD file
  The 3d structure may be viewed using Java or Javascript.
• Other names: (CH3Se)2; Dimethyl diselenide; Diselenide, dimethyl
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• Information on this page:
  • Condensed phase thermochemistry data
  • Phase change data
  • Gas phase ion energetics data
  • Mass spectrum (electron ionization)
  • Gas Chromatography
  • References
  • Notes
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• NIST / TRC Web Thermo Tables, professional edition (thermophysical and thermochemical data)

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Condensed phase thermochemistry 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 by: Eugene S. Domalski and Elizabeth D. Hearing

Constant pressure heat capacity of liquid

Phase change 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:
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
AC - William E. Acree, Jr., James S. Chickos
DH - Eugene S. Domalski and Elizabeth D. Hearing

Enthalpy of vaporization

Enthalpy of fusion

Entropy of fusion

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

View reactions leading to C₂H₆Se₂⁺ (ion structure unspecified)

Ionization energy determinations

Mass spectrum (electron ionization)

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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: NIST Mass Spectrometry Data Center, William E. Wallace, director

Spectrum

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Additional Data

Gas Chromatography

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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: NIST Mass Spectrometry Data Center, William E. Wallace, director

Normal alkane RI, non-polar column, isothermal

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References

Go To: Top, Condensed phase thermochemistry data, Phase change data, Gas phase ion energetics data, Mass spectrum (electron ionization), Gas Chromatography, Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Rabinovich, Sheiman, et al., 1991
Rabinovich, I.B.; Sheiman, M.S.; Kamelova, G.P.; Nistrotov, V.P.; Karataev, E.N., Heat capacity and thermodynamic functions of methyl derivatives of selenium, Zhur. Fiz. Khim., 1991, 65, 2071-2076. [all data]

Rabinovich, Sheiman, et al., 1991, 2
Rabinovich, I.B.; Sheiman, M.S.; Kamelova, G.P.; Nistratov, V.P.; Karataev, E.N., Heat capacities and thermodynamic functions of methyl selenium compounds, Zh. Fiz. Khim., 1991, 65, 2071-6. [all data]

Voronkov, Klyuchnikov, et al., 1989
Voronkov, M.G.; Klyuchnikov, V.A.; Kolabin, S.N.; Shvets, G.N.; Varushin, P.I.; Deryagina, E.N.; Korchevin, N.A.; Tsvetnitskaya, S.I., Thermochemical properties of dialkyl chalcogenides and dichalcogenides RMnR (M = sulfur, selenium, tellurium; n = 1, 2), Dokl. Akad. Nauk SSSR, Phys. Chem., 1989, 307, 5, 1139. [all data]

Karlson, Frankenberger, et al., 1994
Karlson, U.; Frankenberger, W.T.; Spencer, W.F., Physicochemical properties of dimethyl selenide and dimethyl diselenide, J. Chem. Eng. Data, 1994, 39, 3, 608-610, https://doi.org/10.1021/je00015a049 . [all data]

Rabinovich, Sheiman, et al., 1991, 3
Rabinovich, I.B.; Sheiman, M.S.; Kamelova, G.P.; Nistratov, V.P.; Karataev, E.N., Heat capacities and thermodynamic functions of methyl selenium compounds, Zh. Fiz. Khim., 1991, 65, 8, 2071. [all data]

Bock, Aygen, et al., 1984
Bock, H.; Aygen, S.; Rosmus, P.; Solouki, B.; Weissflog, E., Gasphasen-reaktionen,40. Selenoformaldehyd: Hochkorrelierte wellenfunktion und photoelektronenspektroskopischer nachweis, Chem. Ber., 1984, 117, 187. [all data]

Hirabayashi, Mohmand, et al., 1982
Hirabayashi, T.; Mohmand, S.; Bock, H., Thermische zersetzung ofenkettiger kialkyl-sulfide,-disulfide und -diselenide, Chem. Ber., 1982, 115, 483. [all data]

Chang, Young, et al., 1986
Chang, F.C.; Young, V.Y.; Prather, J.W.; Cheng, K.L., Study of methyl chalcogen compounds with ultraviolet photoelectron spectroscopy, J. Electron Spectrosc. Relat. Phenom., 1986, 40, 363. [all data]

Tschmutowa and Bock, 1976
Tschmutowa, G.; Bock, H., Photoelektronen-Spektren und Molekuleigenschaften, LXIII ionisierungsenergien von Phenyl-Methyl-Tellurid und Vergleich der Effekte von Sauerstoff-, Schwefel-, Selen- und Tellur-Substituenten auf das Benzol-π-System, Z. Naturforsch. B:, 1976, 31, 1611. [all data]

Hillen and Werner, 1973
Hillen, L.W.; Werner, R.L., Correlation of retention index data for dimethyl polysulfides, polyselenides, and related thiaselena-alkanes, J. Chromatogr., 1973, 79, 318-321, https://doi.org/10.1016/S0021-9673(01)85303-6 . [all data]

Notes

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• Symbols used in this document:
  

  Cp,liquid	Constant pressure heat capacity of liquid
  S°liquid	Entropy of liquid at standard conditions
  Ttriple	Triple point temperature
  ΔfusH	Enthalpy of fusion
  ΔfusS	Entropy of fusion
  ΔvapH	Enthalpy of vaporization
  ΔvapH°	Enthalpy of vaporization at standard conditions

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