Silane, dimethyl-

• Formula: C₂H₈Si
• Molecular weight: 60.1704
• IUPAC Standard InChI: InChI=1S/C2H8Si/c1-3-2/h3H2,1-2H3 Copy

  
• IUPAC Standard InChIKey: UBHZUDXTHNMNLD-UHFFFAOYSA-N Copy
• CAS Registry Number: 1111-74-6
• 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: Dimethylsilane; 2-Silapropane; (CH3)2SiH2
• Permanent link for this species. Use this link for bookmarking this species for future reference.
• Information on this page:
  • Reaction thermochemistry data
  • Gas phase ion energetics data
  • Mass spectrum (electron ionization)
  • References
  • Notes
• Other data available:
  • Gas Chromatography
• Data at other public NIST sites:
  • Gas Phase Kinetics Database
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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

C₂H₇Si^- +  =

By formula: C₂H₇Si^- + H⁺ = C₂H₈Si

C₂H₇Si^- +  =

By formula: C₂H₇Si^- + H⁺ = C₂H₈Si

Gas phase ion energetics data

Go To: Top, Reaction thermochemistry data, Mass spectrum (electron ionization), References, Notes

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
LL - Sharon G. Lias and Joel F. Liebman
LBLHLM - Sharon G. Lias, John E. Bartmess, Joel F. Liebman, John L. Holmes, Rhoda D. Levin, and W. Gary Mallard
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron

View reactions leading to C₂H₈Si⁺ (ion structure unspecified)

Ionization energy determinations

Appearance energy determinations

De-protonation reactions

C₂H₇Si^- +  =

By formula: C₂H₇Si^- + H⁺ = C₂H₈Si

C₂H₇Si^- +  =

By formula: C₂H₇Si^- + H⁺ = C₂H₈Si

Mass spectrum (electron ionization)

Go To: Top, Reaction thermochemistry data, 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: NIST Mass Spectrometry Data Center, William E. Wallace, director

Spectrum

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Additional Data

References

Go To: Top, Reaction thermochemistry data, Gas phase ion energetics data, Mass spectrum (electron ionization), Notes

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

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]

Damrauer, Kass, et al., 1988
Damrauer, R.; Kass, S.R.; DePuy, C.H., Gas-Phase Acidities of Methylsilanes: C-H versus Si-H, Organomet., 1988, 7, 3, 637, https://doi.org/10.1021/om00093a011 . [all data]

Potzinger, Ritter, et al., 1975
Potzinger, P.; Ritter, A.; Krause, J., Massenspektrometrische Bestimmung von Bindungsenergien in siliciumorganischen Verbindungen, Z. Naturforsch. A:, 1975, 30, 347. [all data]

Roberge, Sandorfy, et al., 1978
Roberge, R.; Sandorfy, C.; Matthews, J.I.; Strausz, O.P., The far ultraviolet HeI photoelectron spectra of alkyl and fluorine substituted silane derivatives, J. Chem. Phys., 1978, 69, 5105. [all data]

Lango, Szepes, et al., 1984
Lango, J.; Szepes, L.; Csaszar, P.; Innorta, G., Studies on the unimolecular decomposition processes of organometallic ions, J. Organomet. Chem., 1984, 269, 133. [all data]

Potzinger and Lampe, 1970
Potzinger, P.; Lampe, F.W., Thermochemistry of simple alkylsilanes, J. Phys. Chem., 1970, 74, 719. [all data]

Shin, Corderman, et al., 1990
Shin, S.K.; Corderman, R.R.; Beauchamp, J.L., Photoionization mass spectrometric studies of the methylsilanes Si(CH₃)_nH_4-n (n = 0-3), Int. J. Mass Spectrom. Ion Processes, 1990, 101, 257. [all data]

Hess, Lampe, et al., 1965
Hess, G.G.; Lampe, F.W.; Sommer, L.H., An electron impact study of ionization and dissociation of trimethylsilanes, J. Am. Chem. Soc., 1965, 87, 5327. [all data]

Notes

Go To: Top, Reaction thermochemistry data, Gas phase ion energetics data, Mass spectrum (electron ionization), References

• Symbols used in this document:
  

  AE	Appearance energy
  ΔrG°	Free energy of reaction at standard conditions
  ΔrH°	Enthalpy of reaction at standard conditions

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