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Pentanal, 2-methyl-

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Phase change 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:
BS - Robert L. Brown and Stephen E. Stein
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny, director

Quantity Value Units Method Reference Comment
Tboil391. ± 3.KAVGN/AAverage of 9 values; Individual data points

In addition to the Thermodynamics Research Center (TRC) data available from this site, much more physical and chemical property data is available from the following TRC products:


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 by: Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi

Ionization energy determinations

IE (eV) Method Reference
9.70EIMorgan, Derrick, et al., 1980

Appearance energy determinations

Ion AE (eV) Other Products MethodReferenceComment
C3H6+11.00C3H6OEIMorgan, Derrick, et al., 1980 
C3H6O+10.30C3H6EIMorgan, Derrick, et al., 1980 
C3H6O+9.80C3H6EIHolmes and Lossing, 1980 
C4H8O+10.60C2H4EIMorgan, Derrick, et al., 1980 

IR Spectrum

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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

Gas Phase Spectrum

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IR spectrum
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Notice: Concentration information is not available for this spectrum and, therefore, molar absorptivity values cannot be derived.

Additional Data

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Owner NIST Standard Reference Data Program
Collection (C) 2018 copyright by the U.S. Secretary of Commerce
on behalf of the United States of America. All rights reserved.
Origin NIST Mass Spectrometry Data Center
State gas
Instrument HP-GC/MS/IRD

This IR spectrum is from the NIST/EPA Gas-Phase Infrared Database .


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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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 NIST Mass Spectrometry Data Center, 1990.
NIST MS number 113087

All mass spectra in this site (plus many more) are available from the NIST/EPA/NIH Mass Spectral Library. Please see the following for information about the library and its accompanying search program.


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

Kovats' RI, non-polar column, temperature ramp

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Column type Active phase I Reference Comment
CapillaryDB-1736.Takeoka, Perrino, et al., 199660. m/0.25 mm/0.25 «mu»m, 30. C @ 4. min, 2. K/min; Tend: 220. C
CapillaryDB-1745.Takeoka, Perrino, et al., 199660. m/0.25 mm/0.25 «mu»m, 30. C @ 4. min, 2. K/min; Tend: 220. C

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

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Column type Active phase I Reference Comment
CapillaryDB-5745.8Xu, van Stee, et al., 200330. m/0.25 mm/1. «mu»m, He, 2.5 K/min; Tstart: 50. C; Tend: 200. C
CapillaryOV-1740.Schreyen, Dirinck, et al., 1976N2, 1. K/min; Column length: 183. m; Tstart: 0. C; Tend: 230. C

Normal alkane RI, non-polar column, temperature ramp

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Column type Active phase I Reference Comment
CapillaryDB-1777.Hanum, Sinha, et al., 199530. m/0.25 mm/0.25 «mu»m, He, 5. K/min; Tstart: 35. C; Tend: 150. C

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

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Column type Active phase I Reference Comment
CapillaryHP-5758.Fang, Pu, et al., 201230. m/0.25 mm/0.25 «mu»m, Helium; Program: 30 0C (1 min) 2 0C/min -> 100 0C (5 min) 5 0C/min -> 170 0C
CapillaryHP-5760.Splivallo, Bossi, et al., 2007He; Program: 50C => 3C/min => 200C(10min) => 10C/min => 290C(10min)
CapillaryHP-5 MS791.Pyun and Shin, 200630. m/0.25 mm/0.25 «mu»m; Program: 40 0C (3 min) 2 0C/min -> 150 0C 20 0C/min -> 220 0C (5 min)
CapillarySE-30760.Vinogradov, 2004Program: not specified
CapillaryMethyl Silicone746.Misharina, 1995Program: not specified
CapillaryDB-1725.Ciccioli, Cecinato, et al., 199460. m/0.32 mm/0.25 «mu»m; Program: not specified
CapillaryDB-1725.Ciccioli, Brancaleoni, et al., 199360. m/0.32 mm/0.25 «mu»m; Program: 3 min at 5 C; 5 - 50 C at 3 deg/min; 50 - 220 C at 5 deg/min
CapillaryCP Sil 8 CB762.Weller and Wolf, 198940. m/0.25 mm/0.25 «mu»m, He; Program: 30 0C (1 min) 15 0C/min -> 45 0C 3 0C/min -> 120 0C

References

Go To: Top, Phase change data, Gas phase ion energetics data, IR Spectrum, Mass spectrum (electron ionization), Gas Chromatography, NIST Free Links, Notes

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

Morgan, Derrick, et al., 1980
Morgan, R.P.; Derrick, P.J.; Loudon, A.G., Kinetics and mechanisms of the decompositions of the molecular ions of pentanal and its monomethyl- substituted homologues in the picosecond to microsecond time interval following field ionization, J. Chem. Soc. Perkin Trans. 2, 1980, 306. [all data]

Holmes and Lossing, 1980
Holmes, J.L.; Lossing, F.P., Gas-phase heats of formation of keto and enol ions of carbonyl compounds., J. Am. Chem. Soc., 1980, 102, 1591. [all data]

Takeoka, Perrino, et al., 1996
Takeoka, G.; Perrino, C., Jr.; Buttery, R., Volatile constituents of used frying oils, J. Agric. Food Chem., 1996, 44, 3, 654-660, https://doi.org/10.1021/jf950430m . [all data]

Xu, van Stee, et al., 2003
Xu, X.; van Stee, L.L.P.; Williams, J.; Beens, J.; Adahchour, M.; Vreuls, R.J.J.; Brinkman, U.A.Th.; Lelieveld, J., Comprehensive two-dimensional gas chromatography (GC×GC) measurements of volatile organic compounds in the atmosphere, Atmos. Chem. Phys., 2003, 3, 3, 665-682, https://doi.org/10.5194/acp-3-665-2003 . [all data]

Schreyen, Dirinck, et al., 1976
Schreyen, L.; Dirinck, P.; van Wassenhove, F.; Schamp, N., Volatile flavor components of leek, J. Agric. Food Chem., 1976, 24, 2, 336-341, https://doi.org/10.1021/jf60204a056 . [all data]

Hanum, Sinha, et al., 1995
Hanum, T.; Sinha, N.K.; Guyer, D.E.; Cash, J.N., Pyruvate and flavor development in macerated onions (Allium cepa L.) by «gamma»-glutamyl transpeptidase and exogenous C-S lyase, Food Chem., 1995, 54, 2, 183-188, https://doi.org/10.1016/0308-8146(95)00027-G . [all data]

Fang, Pu, et al., 2012
Fang, S.; Pu, B.; Chen, A.; Kangzhou, Ao; Xu, D., A box-behnken design for characterizing Chineser truffles (Tuber indicum) aroma by HS-SPME-GC-MS, J. Food Res., 2012, 1, 3, 219-229, https://doi.org/10.5539/jfr.v1n3p219 . [all data]

Splivallo, Bossi, et al., 2007
Splivallo, R.; Bossi, S.; Maffei, M.; Bonfante, P., Discrimination of truffle fruiting body versus mycelial aromas by stir bar sorptive extraction, Phytochemistry, 2007, 68, 20, 2584-2598, https://doi.org/10.1016/j.phytochem.2007.03.030 . [all data]

Pyun and Shin, 2006
Pyun, M.-S.; Shin, S., Antifungal effects of the volatile oils from Allium plants against Trichophyton species and synergism of the oils with ketoconazole, Phytomedicine, 2006, 13, 6, 394-400, https://doi.org/10.1016/j.phymed.2005.03.011 . [all data]

Vinogradov, 2004
Vinogradov, B.A., Production, composition, properties and application of essential oils, 2004, retrieved from http://viness.narod.ru. [all data]

Misharina, 1995
Misharina, T.A., Sorption regularities of sulfur- and oxygen-containing compounds in chromatography and their application in identification of volatile organic compounds, Diss. degree of Dr. Sci. (Chemistry), 1995, 52. [all data]

Ciccioli, Cecinato, et al., 1994
Ciccioli, P.; Cecinato, A.; Brancaleoni, E.; Brachetti, A.; Frattoni, M.; Sparapani, R., Composition and Distribution of Polar and Non-Polar VOCs in Urban, Rural, Forest and Remote Areas, Eur Commission EUR, 1994, 549-568. [all data]

Ciccioli, Brancaleoni, et al., 1993
Ciccioli, P.; Brancaleoni, E.; Cecinato, A.; Sparapani, R.; Frattoni, M., Identification and determination of biogenic and anthropogenic volatile organic compounds in forest areas of Northern and Southern Europe and a remote site of the Himalaya region by high-resolution gas chromatography-mass spectrometry, J. Chromatogr., 1993, 643, 1-2, 55-69, https://doi.org/10.1016/0021-9673(93)80541-F . [all data]

Weller and Wolf, 1989
Weller, J.-P.; Wolf, M., Massenspektroskopie und Headspace-GC, Beitr. Gerichtl. Med., 1989, 47, 525-532. [all data]


Notes

Go To: Top, Phase change data, Gas phase ion energetics data, IR Spectrum, Mass spectrum (electron ionization), Gas Chromatography, NIST Free Links, References