Methanetetracarbonitrile

• Formula: C₅N₄
• Molecular weight: 116.0803
• IUPAC Standard InChI: InChI=1S/C5N4/c6-1-5(2-7,3-8)4-9 Copy

  
• IUPAC Standard InChIKey: XKGUKYPCHPHAJL-UHFFFAOYSA-N Copy
• CAS Registry Number: 24331-09-7
• Chemical structure:
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• Information on this page:
  • Gas phase thermochemistry data
  • Condensed phase thermochemistry data
  • Phase change data
  • Gas phase ion energetics data
  • References
  • Notes
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Gas phase 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

Condensed phase 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

Phase change 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
DRB - Donald R. Burgess, Jr.
AC - William E. Acree, Jr., James S. Chickos

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

View reactions leading to C₅N₄⁺ (ion structure unspecified)

Appearance 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.

Barnes and Mortimer, 1973
Barnes, D.S.; Mortimer, C.T., Enthalpies of combustion of selenium and diphenyl selenide, J. Chem. Thermodyn., 1973, 5, 371-377. [all data]

Barnes, Mortimer, et al., 1973
Barnes, D.S.; Mortimer, C.T.; Mayer, E., The enthalpy of formation of tetracyanomethane, J. Chem. Thermodyn., 1973, 5, 481-483. [all data]

Bock, Haselbach, et al., 1976
Bock, H.; Haselbach, E.; Maier, E.; Stafast, H., The photoelectron spectrum of tetracyanomethane, Helv. Chim. Acta, 1976, 59, 1035. [all data]

Notes

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• Symbols used in this document:
  

  AE	Appearance energy
  ΔcH°solid	Enthalpy of combustion of solid at standard conditions
  ΔfH°gas	Enthalpy of formation of gas at standard conditions
  ΔfH°solid	Enthalpy of formation of solid at standard conditions
  ΔsubH°	Enthalpy of sublimation at standard conditions

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