2-Pentanol, 4-methyl-
- Formula: C6H14O
- Molecular weight: 102.1748
- IUPAC Standard InChIKey: WVYWICLMDOOCFB-UHFFFAOYSA-N
- CAS Registry Number: 108-11-2
- Chemical structure:
This structure is also available as a 2d Mol file or as a computed 3d SD file
The 3d structure may be viewed using Java or Javascript. - Other names: Isobutylmethylcarbinol; Isobutylmethylmethanol; Methylisobutylcarbinol; MAOH; MIBC; MIC; 2-Methyl-4-Pentanol; 3-MIC; 4-Methyl-2-pentanol; 1,3-Dimethylbutanol; Methyl amyl alcohol; 4-Methylpentan-2-ol; Alcool methyl amylique; Metilamil alcohol; 4-Methylpentanol-2; 4-Metilpentan-2-olo; Methyl-isobutylkarbinol; 4-Pentanol, 2-methyl-; UN 2053; 4-Methyl-2-pentyl alcohol; 1,3-Dimethyl-1-butanol; (.+/-.)-4-Methyl-2-pentanol; 4-Methyl-2-amyl alcohol; dl-Methylisobutylcarbinol; NSC 9384
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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 |
---|---|---|---|---|---|
ΔfH°gas | -82.24 ± 0.50 | kcal/mol | N/A | Sachek, Peshchenko, et al., 1974 | Value 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- + =
By formula: C6H13O- + H+ = C6H14O
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 372.2 ± 2.0 | kcal/mol | CIDC | Haas and Harrison, 1993 | gas phase; Both metastable and 50 eV collision energy. |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 365.6 ± 2.1 | kcal/mol | H-TS | Haas and Harrison, 1993 | gas 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 | Method | Reference | Comment |
---|---|---|---|---|---|
C2H5O+ | 10.24 | (CH3)2CHCH2 | EI | Holmes, Lossing, et al., 1988 | LL |
De-protonation reactions
C6H13O- + =
By formula: C6H13O- + H+ = C6H14O
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 372.2 ± 2.0 | kcal/mol | CIDC | Haas and Harrison, 1993 | gas phase; Both metastable and 50 eV collision energy.; B |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 365.6 ± 2.1 | kcal/mol | H-TS | Haas and Harrison, 1993 | gas 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
Column type | Active phase | Temperature (C) | I | Reference | Comment |
---|---|---|---|---|---|
Capillary | OV-101 | 80. | 774.4 | Boneva, 1987 | N2; Column length: 100. m; Column diameter: 0.27 mm |
Capillary | OV-101 | 90. | 775.5 | Boneva, 1987 | N2; Column length: 100. m; Column diameter: 0.27 mm |
Packed | Apiezon L | 120. | 729. | Bogoslovsky, Anvaer, et al., 1978 | Celite 545 |
Packed | Apiezon L | 160. | 736. | Bogoslovsky, Anvaer, et al., 1978 | Celite 545 |
Kovats' RI, polar column, isothermal
Column type | Active phase | Temperature (C) | I | Reference | Comment |
---|---|---|---|---|---|
Capillary | Carbowax 20M | 80. | 1203. | Boneva, 1987 | N2; Column length: 50. m; Column diameter: 0.23 mm |
Capillary | Carbowax 20M | 90. | 1204. | Boneva, 1987 | N2; Column length: 50. m; Column diameter: 0.23 mm |
Van Den Dool and Kratz RI, non-polar column, temperature ramp
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | SPB-5 | 758. | Engel and Ratel, 2007 | 60. m/0.32 mm/1. μm, 40. C @ 2. min, 3. K/min, 230. C @ 10. min |
Capillary | Methyl Silicone | 760. | Sumathykutty, Rao, et al., 1999 | 50. 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
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | VF-5MS | 759.4 | Tret'yakov, 2007 | 30. m/0.25 mm/0.25 μm, He; Program: Multi-step temperature program; T(initial)=60C; T(final)=270C |
Packed | SE-30 | 757. | Peng, Ding, et al., 1988 | Supelcoport; 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
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | Supelcowax-10 | 1167. | Tanchotikul and Hsieh, 1989 | 60. m/0.25 mm/0.25 μm, 40. C @ 5. min, 2. K/min, 175. C @ 20. min |
Capillary | Supelcowax-10 | 1173. | Tanchotikul and Hsieh, 1989 | 60. 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
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | Supelcowax-10 | 1171. | Howard, Mike, et al., 2005 | 30. 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
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | HP-5 | 758. | Isidorov, Purzynska, et al., 2006 | 30. m/0.25 mm/0.25 μm, He, 35. C @ 5. min, 3. K/min; Tend: 200. C |
Capillary | SPB-1 | 737. | Vichi, Castellote, et al., 2003 | 30. m/0.25 mm/0.25 μm, He, 40. C @ 10. min, 3. K/min; Tend: 200. C |
Capillary | SPB-1 | 737. | Vichi, Pizzale, et al., 2003 | 30. m/0.25 mm/0.25 μm, He, 40. C @ 10. min, 3. K/min; Tend: 200. C |
Capillary | OV-101 | 758. | Anker, Jurs, et al., 1990 | 2. 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
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | Methyl Silicone | 744. | Feng and Mu, 2007 | Program: not specified |
Capillary | MDN-5 | 790. | Turchimi, Mentasti, et al., 2004 | 30. m/0.25 mm/0.25 μm, Helium; Program: 35 0C (1 min) 120 0C/min -> 60 0C 2 0C/min -> 280 0C |
Capillary | SE-30 | 748. | Vinogradov, 2004 | Program: not specified |
Capillary | SE-30 | 758. | Vinogradov, 2004 | Program: not specified |
Capillary | Polydimethyl siloxane | 744. | Junkes, Castanho, et al., 2003 | Program: not specified |
Capillary | Methyl Silicone | 744. | Estrada and Gutierrez, 1999 | Program: not specified |
Capillary | Polydimethyl siloxanes | 756. | Zenkevich, 1998 | Program: not specified |
Normal alkane RI, polar column, temperature ramp
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | Supelcowax-10 | 1172. | Vichi, Castellote, et al., 2003 | 30. m/0.25 mm/0.25 μm, He, 40. C @ 10. min, 3. K/min; Tend: 200. C |
Capillary | Supelcowax-10 | 1167. | Vichi, Pizzale, et al., 2003 | 30. m/0.25 mm/0.25 μm, He, 40. C @ 10. min, 3. K/min; Tend: 200. C |
Capillary | RTX-Wax | 1170. | Galindo-Cuspinera, Lubran, et al., 2002 | 60. m/0.25 mm/0.5 μm, He, 40. C @ 5. min, 5. K/min, 180. C @ 20. min |
Capillary | DB-Wax | 1168. | Umano, Nakahara, et al., 1999 | 60. m/0.25 mm/0.25 μm, He, 40. C @ 2. min, 2. K/min; Tend: 200. C |
Capillary | BP-20 | 1168. | Bignell, Dunlop, et al., 1997 | 25. m/0.33 mm/0.5 μm, H2, 5. K/min; Tstart: 80. C; Tend: 220. C |
Capillary | BP-20 | 1168. | Bignell, Dunlop, et al., 1997, 2 | 25. 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
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | SOLGel-Wax | 1173. | Johanningsmeier and McFeeters, 2011 | 30. 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) |
Capillary | FFAP | 1163. | Lopez, Villatoro, et al., 2007 | 50. m/0.2 mm/0.33 μm, He; Program: 70C(1min) => 3C/min => 142C => 5C/min => 225C(10min) |
Capillary | FFAP | 1163. | Echeverría, Correa, et al., 2004 | 50. m/0.2 mm/0.33 μm, He; Program: 70C(1min) => 3C/min => 142C => 5C/min => 225C(10min) |
Capillary | HP-FFAP | 1163. | Echeverria, Fuentes, et al., 2003 | 50. m/0.2 mm/0.33 μm, He; Program: 70C(1min) => 3C/min => 142C => 5C/min => 225C (10min) |
Capillary | FFAP | 1165. | Lopez, Lavilla, et al., 2000 | 50. m/0.2 mm/0.33 μm, N2; Program: 70C(1min) => 3C/min => 142C(2min) => 25C/min => 230C(5min) |
Capillary | FFAP | 1165. | López, Lavilla, et al., 1998 | 50. m/0.2 mm/0.33 μm, N2; Program: 70C (1min) => 3C/min => 142C (2min) => 25C/min => 230C (5min) |
Capillary | DB-Wax | 1181. | Peng, Yang, et al., 1991 | Program: 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
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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
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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,
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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
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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,
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Tanchotikul and Hsieh, 1989
Tanchotikul, U.; Hsieh, T.C.-Y.,
Volatile Flavor Components in Crayfish Waste,
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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,
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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,
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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,
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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,
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Quantitative structure-retention relationship studies of odor-active aliphatic compounds with oxygen-containing functional groups,
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Quantitative structure-retention relationships for alkane and its derivatives based on electrotopological state index and molecular shape index,
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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,
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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,
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Estrada and Gutierrez, 1999
Estrada, E.; Gutierrez, Y.,
Modeling chromatographic parameters by a novel graph theoretical sub-structural approach,
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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,
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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,
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Lopez, M.L.; Villatoro, C.; Fuentes, T.; Graell, J.; Lara, I.; Echeverria, G.,
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Changes in aroma quality of 'Golden Delicious' apples after storage at different oxygen and carbon dioxide concentrations,
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López, Lavilla, et al., 1998
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Influence of different oxygen and carbon dioxide concentrations during storage on production of volatile compounds by Starking delicious apples,
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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,
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Notes
Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry data, Gas phase ion energetics data, Gas Chromatography, References
- Symbols used in this document:
AE Appearance energy ΔfH°gas Enthalpy of formation of gas at standard conditions ΔrG° Free energy of reaction at standard conditions ΔrH° Enthalpy of reaction at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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