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2-Butenoic acid, 3-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, Kenneth Kroenlein director
AC - William E. Acree, Jr., James S. Chickos

Quantity Value Units Method Reference Comment
Tboil467.7KN/AWeast and Grasselli, 1989BS
Quantity Value Units Method Reference Comment
Tfus339.15KN/AAnonymous, 1968TRC
Quantity Value Units Method Reference Comment
Tc661.84KN/AD'Souza and Teja, 1987Uncertainty assigned by TRC = 3. K; Ambrose's procedure; TRC
Quantity Value Units Method Reference Comment
Pc36.0992barN/AD'Souza and Teja, 1987Uncertainty assigned by TRC = 0.95 bar; Ambrose's procedure; TRC

Enthalpy of vaporization

DeltavapH (kJ/mol) Temperature (K) Method Reference Comment
57.7378.AStephenson and Malanowski, 1987Based on data from 363. - 473. K.; AC

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:


Reaction 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: John E. Bartmess

Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. A general reaction search form is also available. Future versions of this site may rely on reaction search pages in place of the enumerated reaction displays seen below.

Individual Reactions

C5H7O2- + Hydrogen cation = 2-Butenoic acid, 3-methyl-

By formula: C5H7O2- + H+ = C5H8O2

Quantity Value Units Method Reference Comment
Deltar1447. ± 9.2kJ/molG+TSCaldwell, Renneboog, et al., 1989gas phase
Quantity Value Units Method Reference Comment
Deltar1415. ± 12.kJ/molCIDCGraul, Schnute, et al., 1990gas phase
Deltar1418. ± 8.4kJ/molIMRECaldwell, Renneboog, et al., 1989gas phase

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

Data compiled as indicated in comments:
B - John E. Bartmess
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi

Quantity Value Units Method Reference Comment
Proton affinity (review)822.9kJ/molN/AHunter and Lias, 1998HL
Quantity Value Units Method Reference Comment
Gas basicity791.9kJ/molN/AHunter and Lias, 1998HL

Ionization energy determinations

IE (eV) Method Reference Comment
9.63PEHolmes, Terlouw, et al., 1979LLK

De-protonation reactions

C5H7O2- + Hydrogen cation = 2-Butenoic acid, 3-methyl-

By formula: C5H7O2- + H+ = C5H8O2

Quantity Value Units Method Reference Comment
Deltar1447. ± 9.2kJ/molG+TSCaldwell, Renneboog, et al., 1989gas phase; B
Quantity Value Units Method Reference Comment
Deltar1415. ± 12.kJ/molCIDCGraul, Schnute, et al., 1990gas phase; B
Deltar1418. ± 8.4kJ/molIMRECaldwell, Renneboog, et al., 1989gas phase; B

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 Japan AIST/NIMC Database- Spectrum MS-NW-4630
NIST MS number 230321

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.


UV/Visible 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: Victor Talrose, Alexander N. Yermakov, Alexy A. Usov, Antonina A. Goncharova, Axlexander N. Leskin, Natalia A. Messineva, Natalia V. Trusova, Margarita V. Efimkina

Spectrum

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UVVis spectrum
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Additional Data

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Source Johnson, 1966
Owner INEP CP RAS, NIST OSRD
Collection (C) 2007 copyright by the U.S. Secretary of Commerce
on behalf of the United States of America. All rights reserved.
Origin INSTITUTE OF ENERGY PROBLEMS OF CHEMICAL PHYSICS, RAS
Source reference RAS UV No. 19946
Instrument Unicam SP 500
Melting point 68-69

Gas Chromatography

Go To: Top, Phase change data, Reaction thermochemistry data, Gas phase ion energetics data, Mass spectrum (electron ionization), UV/Visible spectrum, 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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Column type Active phase I Reference Comment
CapillaryHP-1011027.Milos and Radonic, 200025. m/0.2 mm/0.2 «mu»m, He, 70. C @ 2. min, 3. K/min, 200. C @ 10. min

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

View large format table.

Column type Active phase I Reference Comment
CapillaryVF-5MS953.Tret'yakov, 200730. m/0.25 mm/0.25 «mu»m, He; Program: Multi-step temperature program; T(initial)=60C; T(final)=270C

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

View large format table.

Column type Active phase I Reference Comment
CapillaryDB-Wax1776.Cantergiani, Brevard, et al., 200130. m/0.25 mm/0.25 «mu»m; Program: 20C(30s) => fast => 60C => 4C/min => 220C (20min)

Normal alkane RI, polar column, temperature ramp

View large format table.

Column type Active phase I Reference Comment
CapillaryCP Wax 52 CB1801.Birtic, Ginies, et al., 200930. m/0.32 mm/0.50 «mu»m, Helium, 40. C @ 2. min, 4. K/min, 230. C @ 15. min
CapillaryDB-Wax1819.Moon and Shibamoto, 200960. m/0.25 mm/0.50 «mu»m, Helium, 40. C @ 5. min, 2. K/min, 210. C @ 70. min
CapillaryHP-Innowax1780.Wijaya, Ulrich, et al., 200515. m/0.25 mm/1. «mu»m, 45. C @ 5. min, 10. K/min, 210. C @ 5. min
CapillaryTC-Wax1793.Suhardi, Suzuki, et al., 200260. m/0.25 mm/0.25 «mu»m, He, 40. C @ 10. min, 3. K/min, 230. C @ 10. min
CapillaryCarbowax 20M1753.Kawakami and Kobayashi, 1991He, 60. C @ 4. min, 2. K/min; Column length: 50. m; Column diameter: 0.25 mm; Tend: 180. C
CapillaryFFAP1774.Vernin, Metzger, et al., 1988He, 60. C @ 5. min, 2. K/min; Column length: 50. m; Column diameter: 0.28 mm; Tend: 240. C
CapillaryDB-Wax1804.Andersen J.F., Mikolajczak K.L., et al., 1987Helium, 40. C @ 1. min, 6. K/min; Column length: 30. m; Column diameter: 0.32 mm; Tend: 200. C

Normal alkane RI, polar column, custom temperature program

View large format table.

Column type Active phase I Reference Comment
CapillaryDB-Wax1802.Gonzalez-Rios, Suarez-Quiroz, et al., 200730. m/0.25 mm/0.25 «mu»m, Hydrogen; Program: 44 0C 3 0C/min -> 170 0C 8 0C/min -> 250 0C
CapillaryDB-Wax1776.Gonzalez-Rios, Suarez-Quiroz, et al., 200730. m/0.25 mm/0.25 «mu»m, Hydrogen; Program: not specified

References

Go To: Top, Phase change data, Reaction thermochemistry data, Gas phase ion energetics data, Mass spectrum (electron ionization), UV/Visible spectrum, Gas Chromatography, Notes

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

Weast and Grasselli, 1989
CRC Handbook of Data on Organic Compounds, 2nd Editon, Weast,R.C and Grasselli, J.G., ed(s)., CRC Press, Inc., Boca Raton, FL, 1989, 1. [all data]

Anonymous, 1968
Anonymous, X., Chemicals and Plastics Physical Properties, 1968, Union Carbide Corp., product bulletin, 1968. [all data]

D'Souza and Teja, 1987
D'Souza, R.; Teja, A.S., The prediction of the vapor pressures of carboxylic acids, Chem. Eng. Commun., 1987, 61, 13. [all data]

Stephenson and Malanowski, 1987
Stephenson, Richard M.; Malanowski, Stanislaw, Handbook of the Thermodynamics of Organic Compounds, 1987, https://doi.org/10.1007/978-94-009-3173-2 . [all data]

Caldwell, Renneboog, et al., 1989
Caldwell, G.; Renneboog, R.; Kebarle, P., Gas Phase Acidities of Aliphatic Carboxylic Acids, Based on Measurements of Proton Transfer Equilibria, Can. J. Chem., 1989, 67, 4, 661, https://doi.org/10.1139/v89-092 . [all data]

Graul, Schnute, et al., 1990
Graul, S.T.; Schnute, M.E.; Squires, R.R., Gas-Phase Acidities of Carboxylic Acids and Alcohols from Collision-Induced Dissociation of Dimer Cluster Ions, Int. J. Mass Spectrom. Ion Proc., 1990, 96, 2, 181, https://doi.org/10.1016/0168-1176(90)87028-F . [all data]

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]

Holmes, Terlouw, et al., 1979
Holmes, J.L.; Terlouw, J.K.; Vijfhuizen, P.C.; A'Campo, C., Metastable ion studies XII-Molecular and fragment ion structures for isomeric C4H6O2 acids, Org. Mass Spectrom., 1979, 14, 204. [all data]

Johnson, 1966
Johnson, E.A., UV atlas of organic compouds, 1966, 1, B6/3. [all data]

Milos and Radonic, 2000
Milos, M.; Radonic, A., Gas chromatography mass spectral analysis of free and glycosidically bound volatile compounds from Juniperus oxycedrus L. growing wild in Croatia, Food Chem., 2000, 68, 3, 333-338, https://doi.org/10.1016/S0308-8146(99)00192-2 . [all data]

Tret'yakov, 2007
Tret'yakov, K.V., Retention Data. NIST Mass Spectrometry Data Center., NIST Mass Spectrometry Data Center, 2007. [all data]

Cantergiani, Brevard, et al., 2001
Cantergiani, E.; Brevard, H.; Krebs, Y.; Feria-Morales, A.; Amadò, R.; Yeretzian, C., Characterisation of the aroma of green Mexican coffee and identification of mouldy/earthy defect, Eur. Food Res. Technol., 2001, 212, 6, 648-657, https://doi.org/10.1007/s002170100305 . [all data]

Birtic, Ginies, et al., 2009
Birtic, S.; Ginies, C.; Causse, M.; Renard, C.M.G.C.; Page, D., Changes in volatiles and glycosides during fruit maturartion of two contrasted tomato (Solanum lycopersicum) lines, J. Agric. Food Chem., 2009, 57, 2, 591-598, https://doi.org/10.1021/jf8023062 . [all data]

Moon and Shibamoto, 2009
Moon, J.-K.; Shibamoto, T., Role of roasting conditions in the profile of volatile flavor chemicals formed from coffee beans, J. Agric. Food Chem., 2009, 57, 13, 5823-5831, https://doi.org/10.1021/jf901136e . [all data]

Wijaya, Ulrich, et al., 2005
Wijaya, C.H.; Ulrich, D.; Lestari, R.; Schippel, K.; Ebert, G., Identification of potent odorants in different cultivars of snake fruit [Salacca zalacca (Gaert.) Voss] using gas chromatography-olfactometry, J. Agric. Food Chem., 2005, 53, 5, 1637-1641, https://doi.org/10.1021/jf048950h . [all data]

Suhardi, Suzuki, et al., 2002
Suhardi, S.; Suzuki, M.; Yoshida, K.; Muto, T.; Fujita, A.; Watanbe, N., Changes in the volatile compounds and in the chemical and physical properties of snake fruit (Salacca edulis Reinw) Cv. Pondoh during maturation, J. Agric. Food Chem., 2002, 50, 26, 7627-7633, https://doi.org/10.1021/jf020620e . [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]

Vernin, Metzger, et al., 1988
Vernin, G.; Metzger, J.; Obretenov, T.; Suon, K.-N.; Fraisse, D., GC/MS (EI,PCI,SIM)-data bank analysis of volatile compounds arising from thermal degradation of glucose-valine amadori intermediates in Flavors and Fragrances: A World Perspective. Proceedings of the 10th International Congress of Essential Oils, Fragrances and Flavors, Lawrence,B.M.; Mookherjee,B.D.; Willis,B.J., ed(s)., Elsevier, New York, 1988, 999-1028. [all data]

Andersen J.F., Mikolajczak K.L., et al., 1987
Andersen J.F.; Mikolajczak K.L.; Reed D.K., Analysis of peach bark volatiles and their electroantennogram activity with lesser pechtree borer, Synanthedon pictipes (Grote and Robinson), J. Chem. Ecol., 1987, 13, 11, 2103-2114, https://doi.org/10.1007/BF01012874 . [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, Phase change data, Reaction thermochemistry data, Gas phase ion energetics data, Mass spectrum (electron ionization), UV/Visible spectrum, Gas Chromatography, References