Silane, methylenebis[trimethyl-

• Formula: C₇H₂₀Si₂
• Molecular weight: 160.4047
• IUPAC Standard InChI: InChI=1S/C7H20Si2/c1-8(2,3)7-9(4,5)6/h7H2,1-6H3 Copy

  
• IUPAC Standard InChIKey: GYIODRUWWNNGPI-UHFFFAOYSA-N Copy
• CAS Registry Number: 2117-28-4
• Chemical structure:
  This structure is also available as a 2d Mol file or as a computed 3d SD file
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• Other names: 2,4-Disilapentane, 2,2,4,4-tetramethyl-; Bis(trimethylsilyl)methane; Methylenebis[trimethylsilane]; Silane, methylenebis*trimethyl-
• Permanent link for this species. Use this link for bookmarking this species for future reference.
• Information on this page:
  • Condensed phase thermochemistry data
  • Phase change data
  • Reaction thermochemistry data
  • Gas phase ion energetics data
  • Mass spectrum (electron ionization)
  • Gas Chromatography
  • References
  • Notes
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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
DH - Eugene S. Domalski and Elizabeth D. Hearing
AC - William E. Acree, Jr., James S. Chickos

Enthalpy of vaporization

Entropy of vaporization

Enthalpy of fusion

Entropy of fusion

Reaction 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: John E. Bartmess

Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. A general reaction search form is also available. Future versions of this site may rely on reaction search pages in place of the enumerated reaction displays seen below.

Individual Reactions

C₇H₁₉Si₂^- +  =

By formula: C₇H₁₉Si₂^- + H⁺ = C₇H₂₀Si₂

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:
B - John E. Bartmess
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi

Ionization energy determinations

De-protonation reactions

C₇H₁₉Si₂^- +  =

By formula: C₇H₁₉Si₂^- + H⁺ = C₇H₂₀Si₂

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, temperature ramp

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Normal alkane RI, non-polar column, custom temperature program

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References

Go To: Top, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry 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.

Guseinov and Karasharli, 1982
Guseinov, Z.A.; Karasharli, K.A., Heat capacity and thermodynamic functions of hexamethyldisilylmethane, Azerb. Khim. Zhur., 1982, (4), 107-109. [all data]

Guseinov, Karasharli, et al., 1975
Guseinov, Z.A.; Karasharli, K.A.; Dzhafarov, O.I.; Nurullaev, G.G.; Nametkin, N.S.; Gusel'nikov, L.E.; Volnina, F.A.; Burdasov, E.N.; Vdovin, V.M., Thermodynamic parameters of some cyclic and bridging carbosilanes, Dokl.Akad. Nauk, 1975, SSSR 222, 1369-1372. [all data]

Guseinov and Karasharli, 1982, 2
Guseinov, Z.A.; Karasharli, K.A., Heat capacity and thermodynamic functions of hexamethyldisilylmethane, Azerb. Khim. Zh., 1982, 1982, 107. [all data]

McLure and Neville, 1982
McLure, I.A.; Neville, J.F., The critical temperatures and pressures of hexamethyldisilmethylene, octamethylcyclotetrasiloxane, and decamethylcyclpentasiloxane, J. Chem. Thermodyn., 1982, 14, 385-8. [all data]

Guseinov, Kuliev, et al., 1975
Guseinov, A.Z.; Kuliev, A.A.; Karasharli, K.A.; Dzhafarov, O.I., Azerb. Khim. Zh., 1975, 72. [all data]

Guseinov, Karasharli, et al., 1975, 2
Guseinov, A.Z.; Karasharli, K.A.; Dzhafarov, O.I.; Nurullaev, G.G.; Nametkin, N.S.; Gusel'nikov, L.E.; Volnina, E.A.; Burdasov, E.N.; Vdovin, V.N., Dokl. Akad. Nauk SSSR, 1975, 222, 1369. [all data]

Domalski and Hearing, 1996
Domalski, Eugene S.; Hearing, Elizabeth D., Heat Capacities and Entropies of Organic Compounds in the Condensed Phase. Volume III, J. Phys. Chem. Ref. Data, 1996, 25, 1, 1, https://doi.org/10.1063/1.555985 . [all data]

Romer, Gatev, et al., 1998
Romer, B.; Gatev, G.G.; Zhong, M.; Brauman, J.I., Alpha-Stabilization by Silyl and Phosphino Substitution, J. Am. Chem. Soc., 1998, 120, 12, 2919, https://doi.org/10.1021/ja970279s . [all data]

Brinkman, Berger, et al., 1994
Brinkman, E.A.; Berger, S.; Brauman, J.I., alpha-Silyl-substituent stabilization of carbanions and silyl anions, J. Am. Chem. Soc., 1994, 116, 18, 8304, https://doi.org/10.1021/ja00097a042 . [all data]

Hosomi and Traylor, 1975
Hosomi, A.; Traylor, T.G., Studies of interactions of adjacent carbon-metal σ bonds by photoelectron spectroscopy, J. Am. Chem. Soc., 1975, 97, 3682. [all data]

Szekely, Nefedov, et al., 1967
Szekely, T.; Nefedov, O.M.; Garzo, G.; Shiryayav, V.I.; Fritz, D., Gas chromatographic investigation of the thermal decomposition of polydimethylsilylene, Acta Chim. Acad. Sci. Hung., 1967, 54, 3-4, 241-254. [all data]

Notes

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• Symbols used in this document:
  

  Cp,liquid	Constant pressure heat capacity of liquid
  Pc	Critical pressure
  S°liquid	Entropy of liquid at standard conditions
  Tc	Critical temperature
  Ttriple	Triple point temperature
  Vc	Critical volume
  ΔfusH	Enthalpy of fusion
  ΔfusS	Entropy of fusion
  ΔrG°	Free energy of reaction at standard conditions
  ΔrH°	Enthalpy of reaction at standard conditions
  ΔvapH	Enthalpy of vaporization
  ΔvapS	Entropy of vaporization
  ρc	Critical density

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