3,5-Heptanedione, 2,2,6,6-tetramethyl-

• Formula: C₁₁H₂₀O₂
• Molecular weight: 184.2753
• IUPAC Standard InChI: InChI=1S/C11H20O2/c1-10(2,3)8(12)7-9(13)11(4,5)6/h7H2,1-6H3 Copy

  
• IUPAC Standard InChIKey: YRAJNWYBUCUFBD-UHFFFAOYSA-N Copy
• CAS Registry Number: 1118-71-4
• 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: Dipivaloylmethane; 2,2,6,6-Tetramethyl-3,5-heptanedione; (CH3)3CCOCH2COC(CH3)3; 2,2,6,6-Tetramethylheptane-3,5-dione; 2,2,6,6-Tetramethyl heptanedione
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• Information on this page:
  • Gas phase thermochemistry data
  • Reaction thermochemistry data
  • IR Spectrum
  • References
  • Notes
• Other data available:
  • Condensed phase thermochemistry data
  • Phase change data
  • Gas phase ion energetics data
  • Mass spectrum (electron ionization)
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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

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

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By formula: C₁₁H₂₀O₂ = C₁₁H₂₀O₂

IR Spectrum

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Data compiled by: Coblentz Society, Inc.

• SOLUTION (7% CHCl3 FOR 2.5-15 MICRON) VS SOLVENT; PERKIN-ELMER 421 (GRATING); DIGITIZED BY NIST FROM HARD COPY (FROM TWO SEGMENTS); 2 cm^-1 resolution

Data compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director

• gas

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.

Ferrao and Ribeiro Da Silva, 1981
Ferrao, M.L.C.C.H.; Ribeiro Da Silva, M.A.V., Enthalpies of combustion of four methyl-substituted heptane-3,5-diones and benzoylacetone, J. Chem. Thermodyn., 1981, 13, 567-571. [all data]

Calmon, 1969
Calmon, J.P., Thermodynamic functions of enolization of aliphatic β-diketones, C. R. Acad. Sci. Paris, 1969, 268, 1435-1438. [all data]

Notes

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• Symbols used in this document:
  

  ΔfH°gas	Enthalpy of formation of gas at standard conditions
  ΔrH°	Enthalpy of reaction at standard conditions

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