Penta-1,4-diyne

• Formula: C₅H₄
• Molecular weight: 64.0853
• IUPAC Standard InChI: InChI=1S/C5H4/c1-3-5-4-2/h1-2H,5H2 Copy

  
• IUPAC Standard InChIKey: MDROPVLMRLHTDK-UHFFFAOYSA-N Copy
• CAS Registry Number: 24442-69-1
• Chemical structure:
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• Information on this page:
  • Gas phase ion energetics data
  • References
  • Notes
• Data at other public NIST sites:
  • Microwave spectra (on physics lab web site)
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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:
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 C₅H₄⁺ (ion structure unspecified)

Ionization energy determinations

References

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

Holmes and Lossing, 1986
Holmes, J.L.; Lossing, F.P., Title unavailable, Personal communication to S.G. Lias, 1986. [all data]

Bieri, Burger, et al., 1977
Bieri, G.; Burger, F.; Heilbronner, E.; Maier, J.P., Valence ionization enrgies of hydrocarbons, Helv. Chim. Acta, 1977, 60, 2213. [all data]

Notes

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