Dimethylketene

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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: Glushko Thermocenter, Russian Academy of Sciences, Moscow

Constant pressure heat capacity of gas

Cp,gas (J/mol*K) Temperature (K) Reference Comment
37.6950.Thermodynamics Research Center, 1997 
54.03100.
66.85150.
77.17200.
90.62273.15
95.08298.15
95.41300.
112.80400.
128.86500.
143.11600.
155.61700.
166.53800.
176.04900.
184.321000.
191.51100.
197.71200.
203.11300.
207.81400.
211.81500.

Gas phase ion energetics data

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

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 C4H6O+ (ion structure unspecified)

Ionization energy determinations

IE (eV) Method Reference Comment
≤8.38EIHolmes and Lossing, 1986LBLHLM
8.45PEBock, Hirabayashi, et al., 1981Vertical value; LLK
8.38PEBock, Hirabayashi, et al., 1977Vertical value; LLK

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

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Collection (C) 2014 copyright by the U.S. Secretary of Commerce
on behalf of the United States of America. All rights reserved.
NIST MS number 259

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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

Normal alkane RI, non-polar column, custom temperature program

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Column type Active phase I Reference Comment
CapillaryMethyl Silicone484.Zenkevich, 1996Program: not specified

Normal alkane RI, polar column, temperature ramp

View large format table.

Column type Active phase I Reference Comment
CapillaryDB-Wax1215.Lee and Shibamoto, 200030. m/0.25 mm/0.25 μm, He, 3. K/min, 180. C @ 40. min; Tstart: 50. C

References

Go To: Top, Gas phase thermochemistry data, 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.

Thermodynamics Research Center, 1997
Thermodynamics Research Center, Selected Values of Properties of Chemical Compounds., Thermodynamics Research Center, Texas A&M University, College Station, Texas, 1997. [all data]

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

Bock, Hirabayashi, et al., 1981
Bock, H.; Hirabayashi, T.; Mohmand, S., Thermische erzeugung von alkyl- und halogenketenen, Chem. Ber., 1981, 114, 2595. [all data]

Bock, Hirabayashi, et al., 1977
Bock, H.; Hirabayashi, T.; Mohmand, S.; Solouki, B., Instabile Zwischenprodukte in der Gasphase: Der thermische Zerfall von Carbonsaurechloriden RCOCl, Angew. Chem., 1977, 89, 106. [all data]

Zenkevich, 1996
Zenkevich, I.G., Informational Maitenance of Gas Chromatographic Identification of Organic Compounds in Ecoanalytical Investigations, Z. Anal. Chem., 1996, 51, 11, 1140-1148. [all data]

Lee and Shibamoto, 2000
Lee, K.-G.; Shibamoto, T., Antioxidant properties of aroma compounds isolated from soybeans and mung beans, J. Agric. Food Chem., 2000, 48, 9, 4290-4293, https://doi.org/10.1021/jf000442u . [all data]


Notes

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