2-Pentanol, 4-methyl-

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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: Donald R. Burgess, Jr.

Quantity Value Units Method Reference Comment
Δfgas-82.24 ± 0.50kcal/molN/ASachek, Peshchenko, et al., 1974Value computed using ΔfHliquid° value of -394.7±0.75 kj/mol from Sachek, Peshchenko, et al., 1974 and ΔvapH° value of 50.6±2 kj/mol from missing citation.

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

C6H13O- + Hydrogen cation = 2-Pentanol, 4-methyl-

By formula: C6H13O- + H+ = C6H14O

Quantity Value Units Method Reference Comment
Δr372.2 ± 2.0kcal/molCIDCHaas and Harrison, 1993gas phase; Both metastable and 50 eV collision energy.
Quantity Value Units Method Reference Comment
Δr365.6 ± 2.1kcal/molH-TSHaas and Harrison, 1993gas phase; Both metastable and 50 eV collision energy.

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:
B - John E. Bartmess
LL - Sharon G. Lias and Joel F. Liebman

Appearance energy determinations

Ion AE (eV) Other Products MethodReferenceComment
C2H5O+10.24(CH3)2CHCH2EIHolmes, Lossing, et al., 1988LL

De-protonation reactions

C6H13O- + Hydrogen cation = 2-Pentanol, 4-methyl-

By formula: C6H13O- + H+ = C6H14O

Quantity Value Units Method Reference Comment
Δr372.2 ± 2.0kcal/molCIDCHaas and Harrison, 1993gas phase; Both metastable and 50 eV collision energy.; B
Quantity Value Units Method Reference Comment
Δr365.6 ± 2.1kcal/molH-TSHaas and Harrison, 1993gas phase; Both metastable and 50 eV collision energy.; B

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, isothermal

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Column type Active phase Temperature (C) I Reference Comment
CapillaryOV-10180.774.4Boneva, 1987N2; Column length: 100. m; Column diameter: 0.27 mm
CapillaryOV-10190.775.5Boneva, 1987N2; Column length: 100. m; Column diameter: 0.27 mm
PackedApiezon L120.729.Bogoslovsky, Anvaer, et al., 1978Celite 545
PackedApiezon L160.736.Bogoslovsky, Anvaer, et al., 1978Celite 545

Kovats' RI, polar column, isothermal

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Column type Active phase Temperature (C) I Reference Comment
CapillaryCarbowax 20M80.1203.Boneva, 1987N2; Column length: 50. m; Column diameter: 0.23 mm
CapillaryCarbowax 20M90.1204.Boneva, 1987N2; Column length: 50. m; Column diameter: 0.23 mm

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

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Column type Active phase I Reference Comment
CapillarySPB-5758.Engel and Ratel, 200760. m/0.32 mm/1. μm, 40. C @ 2. min, 3. K/min, 230. C @ 10. min
CapillaryMethyl Silicone760.Sumathykutty, Rao, et al., 199950. m/0.25 mm/0.17 μm, N2, 2. K/min; Tstart: 80. 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
CapillaryVF-5MS759.4Tret'yakov, 200730. m/0.25 mm/0.25 μm, He; Program: Multi-step temperature program; T(initial)=60C; T(final)=270C
PackedSE-30757.Peng, Ding, et al., 1988Supelcoport; Chromosorb; Column length: 3.05 m; Program: 40C(5min) => 10C/min => 200C or 250C (60min)

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

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Column type Active phase I Reference Comment
CapillarySupelcowax-101167.Tanchotikul and Hsieh, 198960. m/0.25 mm/0.25 μm, 40. C @ 5. min, 2. K/min, 175. C @ 20. min
CapillarySupelcowax-101173.Tanchotikul and Hsieh, 198960. m/0.25 mm/0.25 μm, 40. C @ 5. min, 2. K/min, 175. C @ 20. min

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

View large format table.

Column type Active phase I Reference Comment
CapillarySupelcowax-101171.Howard, Mike, et al., 200530. m/0.25 mm/0.25 μm, He; Program: 35C(8min) => 3C/min => 134C => 20C/min => 250C(3.2min)

Normal alkane RI, non-polar column, temperature ramp

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Column type Active phase I Reference Comment
CapillaryHP-5758.Isidorov, Purzynska, et al., 200630. m/0.25 mm/0.25 μm, He, 35. C @ 5. min, 3. K/min; Tend: 200. C
CapillarySPB-1737.Vichi, Castellote, et al., 200330. m/0.25 mm/0.25 μm, He, 40. C @ 10. min, 3. K/min; Tend: 200. C
CapillarySPB-1737.Vichi, Pizzale, et al., 200330. m/0.25 mm/0.25 μm, He, 40. C @ 10. min, 3. K/min; Tend: 200. C
CapillaryOV-101758.Anker, Jurs, et al., 19902. K/min; Column length: 50. m; Column diameter: 0.28 mm; Tstart: 80. C; Tend: 200. C

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

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Column type Active phase I Reference Comment
CapillaryMethyl Silicone744.Feng and Mu, 2007Program: not specified
CapillaryMDN-5790.Turchimi, Mentasti, et al., 200430. m/0.25 mm/0.25 μm, Helium; Program: 35 0C (1 min) 120 0C/min -> 60 0C 2 0C/min -> 280 0C
CapillarySE-30748.Vinogradov, 2004Program: not specified
CapillarySE-30758.Vinogradov, 2004Program: not specified
CapillaryPolydimethyl siloxane744.Junkes, Castanho, et al., 2003Program: not specified
CapillaryMethyl Silicone744.Estrada and Gutierrez, 1999Program: not specified
CapillaryPolydimethyl siloxanes756.Zenkevich, 1998Program: not specified

Normal alkane RI, polar column, temperature ramp

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Column type Active phase I Reference Comment
CapillarySupelcowax-101172.Vichi, Castellote, et al., 200330. m/0.25 mm/0.25 μm, He, 40. C @ 10. min, 3. K/min; Tend: 200. C
CapillarySupelcowax-101167.Vichi, Pizzale, et al., 200330. m/0.25 mm/0.25 μm, He, 40. C @ 10. min, 3. K/min; Tend: 200. C
CapillaryRTX-Wax1170.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
CapillaryDB-Wax1168.Umano, Nakahara, et al., 199960. m/0.25 mm/0.25 μm, He, 40. C @ 2. min, 2. K/min; Tend: 200. C
CapillaryBP-201168.Bignell, Dunlop, et al., 199725. m/0.33 mm/0.5 μm, H2, 5. K/min; Tstart: 80. C; Tend: 220. C
CapillaryBP-201168.Bignell, Dunlop, et al., 1997, 225. m/0.33 mm/0.5 μm, H2, 5. K/min; Tstart: 80. C; Tend: 220. C

Normal alkane RI, polar column, custom temperature program

View large format table.

Column type Active phase I Reference Comment
CapillarySOLGel-Wax1173.Johanningsmeier and McFeeters, 201130. m/0.25 mm/0.25 μm, Helium; Program: 40 0C (2 min) 5 0C/min -> 140 0C 10 0C/min -> 250 0C (3 min)
CapillaryFFAP1163.Lopez, Villatoro, et al., 200750. m/0.2 mm/0.33 μm, He; Program: 70C(1min) => 3C/min => 142C => 5C/min => 225C(10min)
CapillaryFFAP1163.Echeverría, Correa, et al., 200450. m/0.2 mm/0.33 μm, He; Program: 70C(1min) => 3C/min => 142C => 5C/min => 225C(10min)
CapillaryHP-FFAP1163.Echeverria, Fuentes, et al., 200350. m/0.2 mm/0.33 μm, He; Program: 70C(1min) => 3C/min => 142C => 5C/min => 225C (10min)
CapillaryFFAP1165.Lopez, Lavilla, et al., 200050. m/0.2 mm/0.33 μm, N2; Program: 70C(1min) => 3C/min => 142C(2min) => 25C/min => 230C(5min)
CapillaryFFAP1165.López, Lavilla, et al., 199850. m/0.2 mm/0.33 μm, N2; Program: 70C (1min) => 3C/min => 142C (2min) => 25C/min => 230C (5min)
CapillaryDB-Wax1181.Peng, Yang, et al., 1991Program: not specified

References

Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry data, Gas phase ion energetics data, Gas Chromatography, Notes

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

Sachek, Peshchenko, et al., 1974
Sachek, A.I.; Peshchenko, A.D.; Andreevskii, D.N., Heats of formation of secondary pentanols and hexanols, Russ. J. Phys. Chem. (Engl. Transl.), 1974, 48, 617. [all data]

Haas and Harrison, 1993
Haas, M.J.; Harrison, A.G., The Fragmentation of Proton-Bound Cluster Ions and the Gas-Phase Acidities of Alcohols, Int. J. Mass Spectrom. Ion Proc., 1993, 124, 2, 115, https://doi.org/10.1016/0168-1176(93)80003-W . [all data]

Holmes, Lossing, et al., 1988
Holmes, J.L.; Lossing, F.P.; Maccoll, A., Heats of formation of alkyl radicals from appearance energies, J. Am. Chem. Soc., 1988, 110, 7339. [all data]

Boneva, 1987
Boneva, S., Gas Chromatographic Retention Indices for C6 Alkanols on OV-101 and Carbowax 20M Capillary Columns, Chromatographia, 1987, 23, 1, 50-52, https://doi.org/10.1007/BF02310419 . [all data]

Bogoslovsky, Anvaer, et al., 1978
Bogoslovsky, Yu.N.; Anvaer, B.I.; Vigdergauz, M.S., Chromatographic constants in gas chromatography (in Russian), Standards Publ. House, Moscow, 1978, 192. [all data]

Engel and Ratel, 2007
Engel, E.; Ratel, J., Correction of the data generated by mass spectrometry analyses of biological tissues: Application to food authentication, J. Chromatogr. A, 2007, 1154, 1-2, 331-341, https://doi.org/10.1016/j.chroma.2007.02.012 . [all data]

Sumathykutty, Rao, et al., 1999
Sumathykutty, M.A.; Rao, J.M.; Padmakumari, K.P.; Narayanan, C.S., Essential oil constituents of some Piper species, Flavour Fragr. J., 1999, 14, 5, 279-282, https://doi.org/10.1002/(SICI)1099-1026(199909/10)14:5<279::AID-FFJ821>3.0.CO;2-0 . [all data]

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

Peng, Ding, et al., 1988
Peng, C.T.; Ding, S.F.; Hua, R.L.; Yang, Z.C., Prediction of Retention Indexes I. Structure-Retention Index Relationship on Apolar Columns, J. Chromatogr., 1988, 436, 137-172, https://doi.org/10.1016/S0021-9673(00)94575-8 . [all data]

Tanchotikul and Hsieh, 1989
Tanchotikul, U.; Hsieh, T.C.-Y., Volatile Flavor Components in Crayfish Waste, J. Food Sci., 1989, 54, 6, 1515-1520, https://doi.org/10.1111/j.1365-2621.1989.tb05149.x . [all data]

Howard, Mike, et al., 2005
Howard, K.L.; Mike, J.H.; Riesen, R., Validation of a Solid-Phase Microextraction Method for Headspace Analysis of Wine Aroma Components, Am. J. Enol. Vitic, 2005, 56, 1, 37-45. [all data]

Isidorov, Purzynska, et al., 2006
Isidorov, V.; Purzynska, A.; Modzelewska, A.; Serowiecka, M., Distribution coefficients of aliphatic alcohols, carbonyl compounds and esters between air and Carboxen/polydimethylsiloxane fiber coating, Anal. Chim. Acta., 2006, 560, 1-2, 103-109, https://doi.org/10.1016/j.aca.2005.12.043 . [all data]

Vichi, Castellote, et al., 2003
Vichi, S.; Castellote, A.I.; Pizzale, L.; Conte, L.S.; Buxaderas, S.; López-Tamames, E., Analysis of virgin olive oil volatile compounds by headspace solid-phase microextraction coupled to gas chromatography with mass spectrometric and flame ionization detection, J. Chromatogr. A, 2003, 983, 1-2, 19-33, https://doi.org/10.1016/S0021-9673(02)01691-6 . [all data]

Vichi, Pizzale, et al., 2003
Vichi, S.; Pizzale, L.; Conte, L.S.; Buxaderas, S.; López-Tamames, E., Solid-phase microextraction in the analysis of virgin olive oil volatile fraction: characterization of virgin olive oils from two distinct geographical areas of Northern Italy, J. Agric. Food Chem., 2003, 51, 22, 6572-6577, https://doi.org/10.1021/jf030269c . [all data]

Anker, Jurs, et al., 1990
Anker, L.S.; Jurs, P.C.; Edwards, P.A., Quantitative structure-retention relationship studies of odor-active aliphatic compounds with oxygen-containing functional groups, Anal. Chem., 1990, 62, 24, 2676-2684, https://doi.org/10.1021/ac00223a006 . [all data]

Feng and Mu, 2007
Feng, H.; Mu, L.-L., Quantitative structure-retention relationships for alkane and its derivatives based on electrotopological state index and molecular shape index, Chem. Ind. Engineering (Chinese), 2007, 24, 2, 161-168. [all data]

Turchimi, Mentasti, et al., 2004
Turchimi, G.N.; Mentasti, T.; Carpino, F.; Panseri, S.; Moretti, V.M.; Valfre, F., Effects of dietary lipid sources on flavour volatile compounds of brown trout (Salmo trurra L.) fillet, J. Appl. Ichtyol., 2004, 20, 1, 71-75, https://doi.org/10.1046/j.0175-8659.2003.00522.x . [all data]

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

Junkes, Castanho, et al., 2003
Junkes, B.S.; Castanho, R.D.M.; Amboni, C.; Yunes, R.A.; Heinzen, V.E.F., Semiempirical Topological Index: A Novel Molecular Descriptor for Quantitative Structure-Retention Relationship Studies, Internet Electronic Journal of Molecular Design, 2003, 2, 1, 33-49. [all data]

Estrada and Gutierrez, 1999
Estrada, E.; Gutierrez, Y., Modeling chromatographic parameters by a novel graph theoretical sub-structural approach, J. Chromatogr. A, 1999, 858, 2, 187-199, https://doi.org/10.1016/S0021-9673(99)00808-0 . [all data]

Zenkevich, 1998
Zenkevich, I.G., The Principle of Structural Analogy in the Calculation of Gas Chromatographic Retention Indices using Physico-Chemical Constants of Organic Compounds, Zh. Anal. Khim. (Rus.), 1998, 53, 1, 43-49. [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]

Umano, Nakahara, et al., 1999
Umano, K.; Nakahara, K.; Shoji, A.; Shibamoto, T., Aroma chemicals isolated and identified from leaves of aloe arborescens Mill. Var. natalensis Berger, J. Agric. Food Chem., 1999, 47, 9, 3702-3705, https://doi.org/10.1021/jf990116i . [all data]

Bignell, Dunlop, et al., 1997
Bignell, C.M.; Dunlop, P.J.; Brophy, J.J., Volatile leaf oils of some South-Western and Southern Australian species of the genus Eucalyptus (Series I). Part XVI: Subgenus symphyomyrtus, section bisectaria, series cneorifoliae, series porantherae and series falcatae, Flavour Fragr. J., 1997, 12, 261-267. [all data]

Bignell, Dunlop, et al., 1997, 2
Bignell, C.M.; Dunlop, P.J.; Brophy, J.J., Volatile leaf oils of some south-western and southern Australian speices of the genus Eucalyptus (Series I). Part XVIII. A. Subgenus monocalyptus. B. Subgenus Symphyomyrtus: (i) section Guilfoyleanae; (ii) section bisectaria, series accedentes, series occidentales, series levispermae, series loxophlebae, series macrocarpae, series orbifoliae, series calycogonae; (iii) section dumaria, series incrassatae and series ovulares, Flavour Fragr. J., 1997, 12, 423-432. [all data]

Johanningsmeier and McFeeters, 2011
Johanningsmeier, S.D.; McFeeters, R.F., Detection of volatile spoilage metabolites in fermented cucumbers using nontargeted, comprehensive 2-dimensional gas chromatography-time-of-flight mass spectrometry (GCxGCxTOFMS), J. Food Sci., 2011, 76, 1, c168-c177, https://doi.org/10.1111/j.1750-3841.2010.01918.x . [all data]

Lopez, Villatoro, et al., 2007
Lopez, M.L.; Villatoro, C.; Fuentes, T.; Graell, J.; Lara, I.; Echeverria, G., Volatile compounds, quality parameters and consumer acceptance of 'Pink Lady®' apples stored in different conditions, Postharvest Biol. Technol., 2007, 43, 1, 55-66, https://doi.org/10.1016/j.postharvbio.2006.07.009 . [all data]

Echeverría, Correa, et al., 2004
Echeverría, G.; Correa, E.; Ruiz-Altisent, M.; Graell, J.; Puy, J.; López, L., Characterization of Fuji apples from different harvest dates and storage conditions from measurements of volatiles by gas chromatography and electronic nose, J. Agric. Food Chem., 2004, 52, 10, 3069-3076, https://doi.org/10.1021/jf035271i . [all data]

Echeverria, Fuentes, et al., 2003
Echeverria, G.; Fuentes, M.T.; Graell, J.; Lopez, M.L., Relationships between volatile production, fruit quality and sensory evaluation of Fuji apples stored in different atmospheres by means of multivariate analysis, J. Sci. Food Agric., 2003, 84, 1, 5-20, https://doi.org/10.1002/jsfa.1554 . [all data]

Lopez, Lavilla, et al., 2000
Lopez, M.L.; Lavilla, M.T.; Recasens, I.; Graell, J.; Vendrell, M., Changes in aroma quality of 'Golden Delicious' apples after storage at different oxygen and carbon dioxide concentrations, J. Sci. Food Agric., 2000, 80, 3, 311-324, https://doi.org/10.1002/1097-0010(200002)80:3<311::AID-JSFA519>3.0.CO;2-F . [all data]

López, Lavilla, et al., 1998
López, M.L.; Lavilla, T.; Recasens, I.; Riba, M.; Vendrell, M., Influence of different oxygen and carbon dioxide concentrations during storage on production of volatile compounds by Starking delicious apples, J. Agric. Food Chem., 1998, 46, 2, 634-643, https://doi.org/10.1021/jf9608938 . [all data]

Peng, Yang, et al., 1991
Peng, C.T.; Yang, Z.C.; Ding, S.F., Prediction of rentention idexes. II. Structure-retention index relationship on polar columns, J. Chromatogr., 1991, 586, 1, 85-112, https://doi.org/10.1016/0021-9673(91)80028-F . [all data]


Notes

Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry data, Gas phase ion energetics data, Gas Chromatography, References