4-Cyclopentene-1,3-dione

• Formula: C₅H₄O₂
• Molecular weight: 96.0841
• IUPAC Standard InChI: InChI=1S/C5H4O2/c6-4-1-2-5(7)3-4/h1-2H,3H2 Copy

  
• IUPAC Standard InChIKey: MCFZBCCYOPSZLG-UHFFFAOYSA-N Copy
• CAS Registry Number: 930-60-9
• 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: 2-Cyclopentene-1,4-dione; 2-Cyclopenten-1,4-dione; 4-Cyclopenten-1,3-dione; Cyclopent-2-en-1,4-dione; Cyclopent-2-ene-1,4-dione; cyclopenten-1,4-dione; cyclopent-4-ene-1,3-dione
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• Information on this page:
  • Gas phase ion energetics data
  • Mass spectrum (electron ionization)
  • Gas Chromatography
  • References
  • Notes
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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
B - John E. Bartmess

Electron affinity determinations

Ionization energy determinations

Appearance 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

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

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

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Van Den Dool and Kratz RI, polar column, custom temperature program

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Normal alkane RI, non-polar column, temperature ramp

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Normal alkane RI, polar column, temperature ramp

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Normal alkane RI, polar column, custom temperature program

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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.

Paul and Kebarle, 1989
Paul, G.; Kebarle, P., Electron Affinities of Cyclic Unsaturated Dicarbonyls: Maleic Anhydrides, Maleimides, and Cyclopentendione, J. Am. Chem. Soc., 1989, 111, 2, 464, https://doi.org/10.1021/ja00184a009 . [all data]

Gleiter, Dobler, et al., 1982
Gleiter, R.; Dobler, W.; Eckert-Maksic, M., The electronic structure of o-tropoquinone, p-tropoquinone, and cyclopentene-1,2,3-trione - PE spectroscopic investigations, Nouv. J. Chim., 1982, 6, 123. [all data]

Bain and Frost, 1973
Bain, A.D.; Frost, D.C., Studies of the carbonyl group in some five-membered ring compounds by photoelectron spectroscopy, Can. J. Chem., 1973, 51, 1245. [all data]

Burgers, Holmes, et al., 1982
Burgers, P.C.; Holmes, J.L.; Lossing, F.P.; Mommers, A.A.; Povel, F.R.; Terlouw, J.K., Isomeric and tautomeric [C₄H₄O]⁺ ions. Their thermochemistry and collisionally induced fragmentation characteristics, Can. J. Chem., 1982, 60, 2246. [all data]

Deport, Ratel, et al., 2006
Deport, C.; Ratel, J.; Berdagué, J.-L.; Engel, E., Comprehensive combinatory standard correction: A calibration method for handling instrumental drifts of gas chromatography-mass spectrometry systems, J. Chromatogr. A, 2006, 1116, 1-2, 248-258, https://doi.org/10.1016/j.chroma.2006.03.092 . [all data]

Ames, Guy, et al., 2001
Ames, J.M.; Guy, R.C.E.; Kipping, G.J., Effect of pH, temperature, and moisture on the formation of volatile compounds in glycine/glucose model systems, J. Agric. Food Chem., 2001, 49, 9, 4315-4323, https://doi.org/10.1021/jf010198m . [all data]

Mahadevan and Farmer, 2006
Mahadevan, K.; Farmer, L., Key Odor Impact Compounds in Three Yeast Extract Pastes, J. Agric. Food Chem., 2006, 54, 19, 7242-7250, https://doi.org/10.1021/jf061102x . [all data]

Bianchi, Careri, et al., 2007
Bianchi, F.; Careri, M.; Mangia, A.; Musci, M., Retention indices in the analysis of food aroma volatile compounds in temperature-programmed gas chromatography: Database creation and evaluation of precision and robustness, J. Sep. Sci., 2007, 39, 4, 563-572, https://doi.org/10.1002/jssc.200600393 . [all data]

Kim and Chung, 2009
Kim, J.-S.; Chung, H.Y., GC-MS analysis of the volatile components in dried boxthorn (Lycium chimensis) Fruit, J. Korean Soc. Appl. Biol. Chem., 2009, 52, 5, 516-524, https://doi.org/10.3839/jksabc.2009.088 . [all data]

Tai and Ho, 1998
Tai, C.-Y.; Ho, C.-T., Influence of glutathione oxidation and pH on thermal formation of Maillard-type volatile compounds, J. Agric. Food Chem., 1998, 46, 6, 2260-2265, https://doi.org/10.1021/jf971111t . [all data]

Guo, Wu, et al., 2008
Guo, L.; Wu, J.-Z.; Han, T.; Cao, T.; Rahman, K.; Qin, L.-P., Chemical composition, antifungal and antitumor properties of ether extracts of Scapania verrucosa Heeg. and its endophytic fungus Chaetomium fusiforme, Molecules, 2008, 13, 9, 2114-2125, https://doi.org/10.3390/molecules13092114 . [all data]

Kawakami and Kobayashi, 1991
Kawakami, M.; Kobayashi, A., Volatitle constituents of greem mate and roasted mate, J. Agric. Food Chem., 1991, 39, 7, 1275-1279, https://doi.org/10.1021/jf00007a016 . [all data]

Gonzalez-Rios, Suarez-Quiroz, et al., 2007
Gonzalez-Rios, O.; Suarez-Quiroz, M.L.; Boulanger, R.; Barel, M.; Guyot, B.; Guiraud, J.-P.; Schorr-Galindo, S., Impact of ecological post-harvest processing of coffee aroma: II Roasted coffee., J. Food Composition Analysis, 2007, 20, 3-4, 297-307, https://doi.org/10.1016/j.jfca.2006.12.004 . [all data]

Notes

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

• Symbols used in this document:
  

  AE	Appearance energy
  EA	Electron affinity

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