2-Silaisobutene

• Formula: C₃H₈Si
• Molecular weight: 72.1811
• IUPAC Standard InChI: InChI=1S/C3H8Si/c1-4(2)3/h1H2,2-3H3 Copy

  
• IUPAC Standard InChIKey: ZIOQFHFYVWYPJP-UHFFFAOYSA-N Copy
• CAS Registry Number: 4112-23-6
• Chemical structure:
  This structure is also available as a 2d Mol file or as a computed 3d SD file
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• Information on this page:
  • Reaction thermochemistry data
  • Gas phase ion energetics data
  • Ion clustering data
  • Vibrational and/or electronic energy levels
  • References
  • Notes
• 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 as indicated in comments:
B - John E. Bartmess
M - Michael M. Meot-Ner (Mautner) and Sharon G. Lias

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

C₃H₇Si^- +  =

By formula: C₃H₇Si^- + H⁺ = C₃H₈Si

(CAS Reg. No. 54711-92-1 • 4294967295) +  = CAS Reg. No. 54711-92-1

By formula: (CAS Reg. No. 54711-92-1 • 4294967295C₃H₈Si) + C₃H₈Si = CAS Reg. No. 54711-92-1

 +  = ( • )

By formula: F^- + C₃H₈Si = (F^- • C₃H₈Si)

 +  = ( • )

By formula: Fe⁺ + C₃H₈Si = (Fe⁺ • C₃H₈Si)

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 evaluated as indicated in comments:
HL - Edward P. Hunter and Sharon G. Lias

Data compiled as indicated in comments:
B - John E. Bartmess
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 C₃H₈Si⁺ (ion structure unspecified)

Ionization energy determinations

De-protonation reactions

C₃H₇Si^- +  =

By formula: C₃H₇Si^- + H⁺ = C₃H₈Si

Ion clustering 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: Michael M. Meot-Ner (Mautner) and Sharon G. Lias

Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. Searches may be limited to ion clustering reactions. A general reaction search form is also available.

Clustering reactions

 +  = ( • )

By formula: F^- + C₃H₈Si = (F^- • C₃H₈Si)

 +  = ( • )

By formula: Fe⁺ + C₃H₈Si = (Fe⁺ • C₃H₈Si)

Vibrational and/or electronic energy levels

Go To: Top, Reaction thermochemistry data, Gas phase ion energetics data, Ion clustering 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: Marilyn E. Jacox

State:   X

Additional references: Jacox, 1994, page 401; Jacox, 2003, page 386; Mahaffy, Gutowsky, et al., 1980; Mal'tsev, Khabashesku, et al., 1984; Khabashesku, Kudin, et al., 1998

Notes

References

Go To: Top, Reaction thermochemistry data, Gas phase ion energetics data, Ion clustering data, Vibrational and/or electronic energy levels, Notes

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

Damrauer, DePuy, et al., 1986
Damrauer, R.; DePuy, C.H.; Davidson, I.M.T.; Hughes, K.J., Gas phase ion chemistry of dimethylsilene, Organometallics, 1986, 5, 2050. [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]

Allison and McMahon, 1990
Allison, C.E.; McMahon, T.B., How Strong is the Si=C Bond in Fluoro- and Methyl Substituted Silaethylenes? An Experimental Determination of Pi Bond Strengths, J. Am. Chem. Soc., 1990, 112, 5, 1672, https://doi.org/10.1021/ja00161a002 . [all data]

Jacobson and Bakhtiar, 1993
Jacobson, D.B.; Bakhtiar, R., Generation, Characterization and Properties of Iron-Silylene and Iron-Sylene Cationic Complexes in the Gas Phase, J. Am. Chem. Soc., 1993, 115, 23, 10830, https://doi.org/10.1021/ja00076a046 . [all data]

Hunter and Lias, 1998
Hunter, E.P.; Lias, S.G., Evaluated Gas Phase Basicities and Proton Affinities of Molecules: An Update, J. Phys. Chem. Ref. Data, 1998, 27, 3, 413-656, https://doi.org/10.1063/1.556018 . [all data]

Dyke, Josland, et al., 1982
Dyke, J.M.; Josland, G.D.; Lewis, R.A.; Morris, A., Improved first ionization potential of the dimethylsilaethylene molecule obtained with high-temperature photoelectron spectroscopy, J. Phys. Chem., 1982, 86, 2913. [all data]

Koenig and McKenna, 1981
Koenig, T.; McKenna, W., First ionization band of 1,1-dimethylsilaethylene by transient photoelectron spectroscopy, J. Am. Chem. Soc., 1981, 103, 1212. [all data]

Gusel'nikov and Nametkin, 1979
Gusel'nikov, L.E.; Nametkin, N.S., 1,1-dimethyl-1-silaethylene. Heat of formation, ionization potential and the energy of the silicon-carbon π-bond, J. Organomet. Chem., 1979, 169, 155. [all data]

Trommer, Sander, et al., 1993
Trommer, M.; Sander, W.; Patyk, A., Oxidation of methylsilenes with molecular oxygen. A matrix isolation study, J. Am. Chem. Soc., 1993, 115, 25, 11775, https://doi.org/10.1021/ja00078a016 . [all data]

Mal'tsev, Khabashesku, et al., 1977
Mal'tsev, A.K.; Khabashesku, V.N.; Nefedov, O.M., Dokl. Akad. Nauk SSSR, 1977, 233, 421. [all data]

Mal'tsev, Khabashesku, et al., 1979
Mal'tsev, A.K.; Khabashesku, V.N.; Nefedov, O.M., Izv. A.N. SSSR, 1979, Ser. Khim., 2152. [all data]

Nefedov, Mal'tsev, et al., 1980
Nefedov, O.M.; Mal'tsev, A.K.; Khabashesku, V.N.; Korolev, V.A., Ar-matrix stabilization and ir spectra of 1,1-dimethyl-1-silaethylene and its deuteromethyl derivative, J. Organomet. Chem., 1980, 201, 1, 123, https://doi.org/10.1016/S0022-328X(00)92571-3 . [all data]

Gusel'nikov, Volkova, et al., 1980
Gusel'nikov, L.E.; Volkova, V.V.; Avakyan, V.G.; Nametkin, N.S., Very low pressure pyrolysis (VLPP) of monosilacyclobutanes. Infrared absorptions of 1,1-dimethyl-1-silaethylene, (CH3)2Si«58875»CH2, and 1,1-dideuteriomethyl-1-silaethylene, (CD3)2Si«58875»CH2 isolated in argon matrices, J. Organomet. Chem., 1980, 201, 1, 137, https://doi.org/10.1016/S0022-328X(00)92572-5 . [all data]

Jacox, 1994
Jacox, M.E., Vibrational and electronic energy levels of polyatomic transient molecules, American Chemical Society, Washington, DC, 1994, 464. [all data]

Jacox, 2003
Jacox, M.E., Vibrational and electronic energy levels of polyatomic transient molecules: supplement B, J. Phys. Chem. Ref. Data, 2003, 32, 1, 1-441, https://doi.org/10.1063/1.1497629 . [all data]

Mahaffy, Gutowsky, et al., 1980
Mahaffy, P.G.; Gutowsky, R.; Montgomery, L.K., An electron diffraction study of 1,1-dimethylsilaethylene, J. Am. Chem. Soc., 1980, 102, 8, 2854, https://doi.org/10.1021/ja00528a064 . [all data]

Mal'tsev, Khabashesku, et al., 1984
Mal'tsev, A.K.; Khabashesku, V.N.; Nefedov, O.M., Direct spectroscopic study of silaolefins. Vibrational frequencies of R2Si«58875»CD2 (R = CH3, CD3) in an argon matrix, J. Organomet. Chem., 1984, 271, 1-3, 55, https://doi.org/10.1016/0022-328X(84)85163-3 . [all data]

Khabashesku, Kudin, et al., 1998
Khabashesku, V.N.; Kudin, K.N.; Margrave, J.L., Vibrational analysis of infrared spectra of matrix-isolated transient silenes on basis of density functional theory calculations, J. Mol. Struct., 1998, 443, 1-3, 175, https://doi.org/10.1016/S0022-2860(97)00398-0 . [all data]

Notes

Go To: Top, Reaction thermochemistry data, Gas phase ion energetics data, Ion clustering data, Vibrational and/or electronic energy levels, References

• Symbols used in this document:
  

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

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