2,5-Cyclohexadiene-1,4-dione, 2,5-dimethyl-

• Formula: C₈H₈O₂
• Molecular weight: 136.1479
• IUPAC Standard InChI: InChI=1S/C8H8O2/c1-5-3-8(10)6(2)4-7(5)9/h3-4H,1-2H3 Copy

  
• IUPAC Standard InChIKey: MYKLQMNSFPAPLZ-UHFFFAOYSA-N Copy
• CAS Registry Number: 137-18-8
• Chemical structure:
  This structure is also available as a 2d Mol file or as a computed 3d SD file
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• Other names: p-Benzoquinone, 2,5-dimethyl-; p-Xyloquinone; Phlorone; 2,5-Dimethyl-p-benzoquinone; 2,5-Dimethyl-1,4-benzoquinone; 2,5-Dimethylquinone; 2,5-Xyloquinone; 3,6-Dimethyl-p-benzoquinone; Benzoquinone, 2, 5-dimethyl-; 2,5-Dimethyl-1,4-benzochinon; 2,5-Dimetilbenzochinone (1:4); Floron; Florone; 2,5-Dimethyl-2,5-Cyclohexadiene-1,4-dione; 2,5-Dimethyl-p-quinone; NSC 15309
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• Information on this page:
  • Gas phase ion energetics data
  • Mass spectrum (electron ionization)
  • Gas Chromatography
  • References
  • Notes
• Other data available:
  • Phase change data
  • IR Spectrum
  • UV/Visible spectrum
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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:
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
B - John E. Bartmess

View reactions leading to C₈H₈O₂⁺ (ion structure unspecified)

Electron affinity determinations

Ionization energy determinations

Mass spectrum (electron ionization)

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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

Spectrum

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Additional Data

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

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

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References

Go To: Top, Gas phase ion energetics data, Mass spectrum (electron ionization), Gas Chromatography, Notes

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

Heinis, Chowdhury, et al., 1988
Heinis, T.; Chowdhury, S.; Scott, S.L.; Kebarle, P., Electron Affinities of Benzo-, Naphtho-, and Anthraquinones Determined from Gas-Phase Equilibria Measurements, J. Am. Chem. Soc., 1988, 110, 2, 400, https://doi.org/10.1021/ja00210a015 . [all data]

Kobayashi, 1975
Kobayashi, T., Photoelectron spectra of p-benzoquinones, J. Electron. Spectrosc. Relat. Phenom., 1975, 7, 349. [all data]

Dougherty and McGlynn, 1977
Dougherty, D.; McGlynn, S.P., Photoelectron spectroscopy of carbonyls. 1,4-Benzoquinones, J. Am. Chem. Soc., 1977, 99, 3234. [all data]

Hill, Isaacs, et al., 1999
Hill, V.M.; Isaacs, N.S.; Ledward, D.A.; Ames, J.M., Effect of high hydrostatic pressure on the volatile components of a glucose-lysine model system, J. Agric. Food Chem., 1999, 47, 9, 3675-3681, https://doi.org/10.1021/jf990124z . [all data]

Notes

Go To: Top, Gas phase ion energetics data, Mass spectrum (electron ionization), Gas Chromatography, References

• Symbols used in this document:
  

  EA	Electron affinity

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