1-Butene

• Formula: C₄H₈
• Molecular weight: 56.1063
• IUPAC Standard InChI: InChI=1S/C4H8/c1-3-4-2/h3H,1,4H2,2H3 Copy

  
• IUPAC Standard InChIKey: VXNZUUAINFGPBY-UHFFFAOYSA-N Copy
• CAS Registry Number: 106-98-9
• 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: α-Butene; α-Butylene; But-1-ene; Butene-1; Ethylethylene; 1-Butylene; 1-C4H8
• 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
  • Gas Chromatography
  • References
  • Notes
• Other data available:
  • Gas phase thermochemistry data
  • Condensed phase thermochemistry data
  • Phase change data
  • Henry's Law data
  • IR Spectrum
  • Mass spectrum (electron ionization)
  • UV/Visible spectrum
• Data at other public NIST sites:
  • Microwave spectra (on physics lab web site)
  • Electron-Impact Ionization Cross Sections (on physics web site)
  • Gas Phase Kinetics Database
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• NIST / TRC Web Thermo Tables, professional edition (thermophysical and thermochemical data)

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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:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
B - 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

=

By formula: C₄H₈ = C₄H₈

C₄H₇^- +  =

By formula: C₄H₇^- + H⁺ = C₄H₈

 +  =

By formula: C₄H₈ + Br₂ = C₄H₈Br₂

 +  =

By formula: HBr + C₄H₈ = C₄H₉Br

C₄H₇^- +  =

By formula: C₄H₇^- + H⁺ = C₄H₈

=

By formula: C₄H₈ = C₄H₈

=  + 

By formula: C₄H₈I₂ = C₄H₈ + I₂

 +  =

By formula: C₄H₈ + H₂ = C₄H₁₀

=  + 

By formula: C₄H₉Cl = C₄H₈ + HCl

 +  =

By formula: C₄H₈ + I₂ = C₄H₈I₂

=  + 

By formula: C₁₀H₁₄O = C₄H₈ + C₆H₆O

=  + 

By formula: C₁₀H₁₄O = C₄H₈ + C₆H₆O

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:
L - Sharon G. Lias

Data compiled as indicated in comments:
B - John E. Bartmess
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
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron

View reactions leading to C₄H₈⁺ (ion structure unspecified)

Ionization energy determinations

Appearance energy determinations

De-protonation reactions

C₄H₇^- +  =

By formula: C₄H₇^- + H⁺ = C₄H₈

C₄H₇^- +  =

By formula: C₄H₇^- + H⁺ = C₄H₈

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

Kovats' RI, non-polar column, isothermal

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Kovats' RI, non-polar column, custom temperature program

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Kovats' RI, polar column, isothermal

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Van Den Dool and Kratz RI, non-polar column, temperature ramp

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Van Den Dool and Kratz RI, non-polar column, custom temperature program

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Normal alkane RI, non-polar column, isothermal

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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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Normal alkane RI, polar column, custom temperature program

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References

Go To: Top, Reaction thermochemistry data, Gas phase ion energetics data, Gas Chromatography, Notes

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

Meyer and Stroz, 1972
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Steiner, B.; Giese, C.F.; Inghram, M.G., Photoionization of alkanes. Dissociation of excited molecular ions, J. Chem. Phys., 1961, 34, 189. [all data]

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White, Carlson, et al., 1974
White, R.M.; Carlson, T.A.; Spears, D.P., Angular distribution of the photoelectron spectra for ethylene, propylene, butene and butadiene, J. Electron Spectrosc. Relat. Phenom., 1974, 3, 59. [all data]

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Meisels, G.G.; Park, J.Y.; Giessner, B.G., Ionization and dissociation of C₄H₈ isomers, J. Am. Chem. Soc., 1970, 92, 254. [all data]

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Do, L.; Raulin, F., Gas chromatography of Titan's atmosphere. III. Analysis of low-molecular-weight hydrocarbons and nitriles with a CP-Sil-5 CB WCOT capillary column, J. Chromatogr., 1992, 591, 1-2, 297-301, https://doi.org/10.1016/0021-9673(92)80247-R . [all data]

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Anders, G.; Anders, K.; Engewald, W., Identification of non-branched alkenylcycloalkanes with a terminal double bond from retention index increments, Chromatographia, 1985, 20, 2, 83-86, https://doi.org/10.1007/BF02280602 . [all data]

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Robinson, P.G.; Odell, A.L., A system of standard retention indices and its uses. The characterisation of stationary phases and the prediction of retention indices, J. Chromatogr., 1971, 57, 1-10, https://doi.org/10.1016/0021-9673(71)80001-8 . [all data]

Notes

Go To: Top, Reaction thermochemistry data, Gas phase ion energetics data, Gas Chromatography, References

• Symbols used in this document:
  

  AE	Appearance energy
  IE (evaluated)	Recommended ionization 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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