Cyclooctyne

• Formula: C₈H₁₂
• Molecular weight: 108.1809
• IUPAC Standard InChI: InChI=1S/C8H12/c1-2-4-6-8-7-5-3-1/h1-6H2 Copy

  
• IUPAC Standard InChIKey: ZPWOOKQUDFIEIX-UHFFFAOYSA-N Copy
• CAS Registry Number: 1781-78-8
• Chemical structure:
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• Information on this page:
  • Reaction thermochemistry data
  • Gas phase ion energetics data
  • References
  • Notes
• Other data available:
  • Mass spectrum (electron ionization)
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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: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

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

2 +  =

By formula: 2H₂ + C₈H₁₂ = C₈H₁₆

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 by: Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi

View reactions leading to C₈H₁₂⁺ (ion structure unspecified)

Ionization energy determinations

References

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

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

Roth, Hopf, et al., 1994
Roth, W.R.; Hopf, H.; Horn, C., Propargyl-Stabilisierungsenergie, Chem. Ber., 1994, 127, 1781-1795. [all data]

Turner, Jarrett, et al., 1973
Turner, R.B.; Jarrett, A.D.; Goebel, P.; Mallon, B.J., Heats of hydrogenation. 9. Cyclic acetylenes and some miscellaneous olefins, J. Am. Chem. Soc., 1973, 95, 790-792. [all data]

Bieri, Heilbronner, et al., 1974
Bieri, G.; Heilbronner, E.; Kloster-Jensen, E.; Schmelzer, A.; Wirz, J., Electronic states of 1,5-cyclooctadiyne radical cation and of related systems: the electronic structure of cis-bent carbon-carbon triple bonds, Helv. Chim. Acta, 1974, 57, 1265. [all data]

Schmidt, Schweig, et al., 1974
Schmidt, H.; Schweig, A.; Krebs, A., Splitting of the degenerate acetylenic πMOs; a probe for ring strain, Tetrahedron Lett., 1974, 16, 1471. [all data]

Notes

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

• Symbols used in this document:
  

  ΔrH°	Enthalpy of reaction at standard conditions

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