2,4-Dimethylfuran

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Gas phase ion energetics data

Go To: Top, 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 evaluated as indicated in comments:
HL - Edward P. Hunter and Sharon G. Lias

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

View reactions leading to C6H8O+ (ion structure unspecified)

Quantity Value Units Method Reference Comment
Proton affinity (review)213.8kcal/molN/AHunter and Lias, 1998HL
Quantity Value Units Method Reference Comment
Gas basicity206.1kcal/molN/AHunter and Lias, 1998HL

Ionization energy determinations

IE (eV) Method Reference Comment
8.39 ± 0.10EIGrutzmacher and Spilker, 1985LBLHLM

Mass spectrum (electron ionization)

Go To: Top, Gas phase ion energetics data, 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 by: NIST Mass Spectrometry Data Center, William E. Wallace, director

Spectrum

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Mass spectrum
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Additional Data

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Owner NIST Mass Spectrometry Data Center
Collection (C) 2014 copyright by the U.S. Secretary of Commerce
on behalf of the United States of America. All rights reserved.
Origin TNO Volatile Compounds in Food - Chemical Concepts
NIST MS number 249758

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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

Kovats' RI, non-polar column, isothermal

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Column type Active phase Temperature (C) I Reference Comment
CapillarySE-30100.704.Golovnya, Misharina, et al., 199260. m/0.25 mm/0.50 μm, He
CapillaryOV-101100.706.Golovnya, Misharina, et al., 199260. m/0.25 mm/0.50 μm, He

Kovats' RI, polar column, isothermal

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Column type Active phase Temperature (C) I Reference Comment
CapillaryCarbowax 40M100.949.Golovnya, Misharina, et al., 199250. m/0.32 mm/0.25 μm, He

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

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Column type Active phase I Reference Comment
CapillaryOV-101695.Golovnya, Misharina, et al., 199260. m/0.25 mm/0.50 μm, He, 4. K/min; Tstart: 50. C; Tend: 200. C

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

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Column type Active phase I Reference Comment
CapillaryBPX-5735.Elmore, Mottram, et al., 199950. m/0.32 mm/0.5 μm, He; Program: 0C(5min) => 40C/min => 40C(2min) => 4C/min => 280C

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

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Column type Active phase I Reference Comment
CapillaryCarbowax 40M936.Golovnya, Misharina, et al., 199250. m/0.32 mm/0.25 μm, He, 4. K/min; Tstart: 50. C; Tend: 200. C

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

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Column type Active phase I Reference Comment
CapillaryCarbowax943.Baltes w. and Bochmann G., 1987Column diameter: 0.3 mm; Program: not specified
CapillaryCarbowax944.Baltes w. and Bochmann G., 1987Column diameter: 0.3 mm; Program: not specified
CapillaryCarbowax945.Baltes w. and Bochmann G., 1987Column diameter: 0.3 mm; Program: not specified
CapillaryCarbowax945.Baltes w. and Bochmann G., 1987Column diameter: 0.3 mm; Program: not specified
CapillaryCarbowax948.Baltes w. and Bochmann G., 1987Column diameter: 0.3 mm; Program: not specified

Normal alkane RI, non-polar column, temperature ramp

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Column type Active phase I Reference Comment
CapillaryDB-1703.Barrefors, Björkqvist, et al., 199650. m/0.32 mm/1. μm, 3. K/min; Tstart: -30. C

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

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Column type Active phase I Reference Comment
CapillaryVF-5729.Shivashankar, Roy, et al., 201230. m/0.25 mm/0.25 μm, Helium; Program: 50 0C (2 min) 3 0C/min -> 200 0C (3 min) 10 0C/min -> 220 0C (8 min)
CapillaryVF-5708.Shivashankar, Roy, et al., 201230. m/0.25 mm/0.25 μm, Helium; Program: not specified

Normal alkane RI, polar column, temperature ramp

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Column type Active phase I Reference Comment
CapillaryFFAP945.Budryn, Nebesny, et al., 201130. m/0.32 mm/0.50 μm, Nitrogen, 35. C @ 5. min, 4. K/min, 250. C @ 45. min
CapillaryFFAP945.Nebesny, Budryn, et al., 200730. m/0.32 mm/0.5 μm, N2, 35. C @ 5. min, 4. K/min, 320. C @ 45. min
CapillaryRTX-Wax978.Galindo-Cuspinera, Lubran, et al., 200260. m/0.25 mm/0.5 μm, He, 40. C @ 5. min, 5. K/min, 180. C @ 20. min

Normal alkane RI, polar column, custom temperature program

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Column type Active phase I Reference Comment
CapillaryHP-Innowax949.Narain, Galvao, et al., 200730. m/0.25 mm/0.25 μm, He; Program: 30C(5min) => 7C/min => 100C(5min) => 1C/min => 130C => 10C/min => 195C(45min)
CapillaryHP-Innowax954.Narain, Galvao, et al., 200730. m/0.25 mm/0.25 μm, He; Program: 30C(5min) => 7C/min => 100C(5min) => 1C/min => 130C => 10C/min => 195C(45min)
CapillaryDB-Wax958.Gyawalia, Seo, et al., 200660. m/0.2 mm/0.25 μm, He; Program: 40C(3min) => 2C/min => 150C => 4C/min => 220C(20min) => 5C/min => 230C

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.

Hunter and Lias, 1998
Hunter, E.P.; Lias, S.G., Evaluated Gas Phase Basicities and Proton Affinities of Molecules: An Update, J. Phys. Chem. Ref. Data, 1998, 27, 3, 413-656, https://doi.org/10.1063/1.556018 . [all data]

Grutzmacher and Spilker, 1985
Grutzmacher, H.-F.; Spilker, R., Loss of CO from 4,6-dimethyl-2-pyrone and 2,6-dimethyl-4-pyrone radical cations, Org. Mass Spectrom., 1985, 20, 258. [all data]

Golovnya, Misharina, et al., 1992
Golovnya, R.V.; Misharina, T.A.; Beletskiy, I.V., Influence of methyl, formyl and acetyl groups on retention of substituted furans and thiophenes in capillary GC, Chromatographia, 1992, 34, 9/10, 497-501, https://doi.org/10.1007/BF02290243 . [all data]

Elmore, Mottram, et al., 1999
Elmore, J.S.; Mottram, D.S.; Enser, M.; Wood, J.D., Effect of the polyunsaturated fatty acid composition of beef muscle on the profile of aroma volatiles, J. Agric. Food Chem., 1999, 47, 4, 1619-1625, https://doi.org/10.1021/jf980718m . [all data]

Baltes w. and Bochmann G., 1987
Baltes w.; Bochmann G., Model reactions on roast aroma formation. II. Mass spectrometric identification of furans and furanones from the reaction of serine and threonine with sucrose under the conditions of coffee roasting, Z. Lebensm. Unters. Forsch., 1987, 184, 179-186. [all data]

Barrefors, Björkqvist, et al., 1996
Barrefors, G.; Björkqvist, S.; Ramnäs, O.; Petersson, G., Gas chromatographic separation of volatile furans from birchwood smoke, J. Chromatogr. A, 1996, 753, 1, 151-155, https://doi.org/10.1016/S0021-9673(96)00534-1 . [all data]

Shivashankar, Roy, et al., 2012
Shivashankar, S.; Roy, T.K.; Moorthy, P.N.R., Headspace solid phase micro extraction and GC/MS analysis of the volatile components in seed and cake of Azadirachta indica A. juss, Chem. Bull. of Politechnika Univ. Timisoara, Romania, 2012, 57(71), 1, 1-6. [all data]

Budryn, Nebesny, et al., 2011
Budryn, G.; Nebesny, E.; Kula, J.; Majda, T.; Krysiak, W., HS-SPME/GC/MS Profiles of convectively and microwave roasted Ivory Coast Robusta coffee brews, Czech. J. Food Sci., 2011, 29, 2, 151-160. [all data]

Nebesny, Budryn, et al., 2007
Nebesny, E.; Budryn, G.; Kula, J.; Majda, T., The effect of roasting method on headspace composition of robusta coffee bean aroma, Eur. Food Res. Technol., 2007, 225, 1, 9-19, https://doi.org/10.1007/s00217-006-0375-0 . [all data]

Galindo-Cuspinera, Lubran, et al., 2002
Galindo-Cuspinera, V.; Lubran, M.B.; Rankin, S.A., Comparison of volatile compounds in water- and oil-soluble annatto (Bixa orellana L.) extracts, J. Agric. Food Chem., 2002, 50, 7, 2010-2015, https://doi.org/10.1021/jf011325h . [all data]

Narain, Galvao, et al., 2007
Narain, N.; Galvao, M.S.; Madruga, M.S., Volatile compounds captured through purge and trap technique in caja-umbu (Spondias sp.) fruits during maturation, Food Chem., 2007, 102, 3, 726-731, https://doi.org/10.1016/j.foodchem.2006.06.003 . [all data]

Gyawalia, Seo, et al., 2006
Gyawalia, R.; Seo, H.-Y.; Lee, H.-J.; Song, H.-P.; Kim, D.-H.; Byun, M.-W.; Kim, K.-S., Effect of γ-irradiation on volatile compounds of dried Welsh onion (Allium fistulosum L.), Radiat. Phys. Chem., 2006, 75, 2, 322-328, https://doi.org/10.1016/j.radphyschem.2005.07.001 . [all data]


Notes

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