2-Hexanol, 2-methyl-
- Formula: C7H16O
- Molecular weight: 116.2013
- IUPAC Standard InChIKey: KRIMXCDMVRMCTC-UHFFFAOYSA-N
- CAS Registry Number: 625-23-0
- 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: Butyldimethylcarbinol; 2-Methyl-2-hexanol; 2-Methyl-2-hydroxyhexane; 1,1-Dimethyl-1-pentanol; 2-Methyl-2-hexanoI; Methyl-2 hexanol-2; 2-methylhexan-2-ol
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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 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 |
---|---|---|---|---|---|
C3H7O+ | 9.82 | 1-C4H9 | EI | Holmes, Lossing, et al., 1988 | LL |
De-protonation reactions
C7H15O- + =
By formula: C7H15O- + H+ = C7H16O
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 371.7 ± 2.1 | kcal/mol | G+TS | Higgins and Bartmess, 1998 | gas phase; B |
ΔrH° | 371.6 ± 2.8 | kcal/mol | G+TS | Boand, Houriet, et al., 1983 | gas phase; value altered from reference due to change in acidity scale; B |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 365.1 ± 2.0 | kcal/mol | IMRE | Higgins and Bartmess, 1998 | gas phase; B |
ΔrG° | 365.0 ± 2.7 | kcal/mol | CIDC | Boand, Houriet, et al., 1983 | gas phase; value altered from reference due to change in acidity scale; B |
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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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-3387 |
NIST MS number | 231744 |
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
Column type | Active phase | Temperature (C) | I | Reference | Comment |
---|---|---|---|---|---|
Packed | C78, Branched paraffin | 130. | 785.7 | Dallos, Sisak, et al., 2000 | He; Column length: 3.3 m |
Packed | C78, Branched paraffin | 130. | 786.1 | Reddy, Dutoit, et al., 1992 | Chromosorb G HP; Column length: 3.3 m |
Packed | Apolane | 130. | 787. | Dutoit, 1991 | Column length: 3.7 m |
Packed | Apolane | 70. | 782.4 | Riedo, Fritz, et al., 1976 | He, Chromosorb; Column length: 2.4 m |
Packed | SE-30 | 100. | 822. | Pías and Gascó, 1975 | Ar, Chromosorb W AW DMCS HP (80-100 mesh); Column length: 1. m |
Packed | SE-30 | 120. | 817. | Pías and Gascó, 1975 | Ar, Chromosorb W AW DMCS HP (80-100 mesh); Column length: 1. m |
Packed | SE-30 | 140. | 818. | Pías and Gascó, 1975 | Ar, Chromosorb W AW DMCS HP (80-100 mesh); Column length: 1. m |
Kovats' RI, polar column, isothermal
Column type | Active phase | Temperature (C) | I | Reference | Comment |
---|---|---|---|---|---|
Packed | Polyethylene Glycol 4000 | 100. | 1196. | Bonastre and Grenier, 1968 | Chromosorb P; Column length: 6. m |
Packed | Polyethylene Glycol 4000 | 120. | 1188. | Bonastre and Grenier, 1968 | Chromosorb P; Column length: 6. m |
Packed | Polyethylene Glycol 4000 | 140. | 1180. | Bonastre and Grenier, 1968 | Chromosorb P; Column length: 6. m |
Packed | Polyethylene Glycol 4000 | 80. | 1204. | Bonastre and Grenier, 1968 | Chromosorb P; Column length: 6. m |
Normal alkane RI, non-polar column, isothermal
Column type | Active phase | Temperature (C) | I | Reference | Comment |
---|---|---|---|---|---|
Packed | SE-30 | 100. | 822. | Zhou and Wu, 2007 | Column length: 1. m |
Normal alkane RI, non-polar column, custom temperature program
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | Methyl Silicone | 822. | Chen and Feng, 2007 | Program: not specified |
Capillary | Methyl Silicone | 817. | Feng and Mu, 2007 | Program: not specified |
Capillary | Methyl Silicone | 822. | Kou, Zhang, et al., 2006 | Program: not specified |
Capillary | Methyl Silicone | 822. | Fu and Wang, 2004 | Program: not specified |
Capillary | Polydimethyl siloxane | 817. | Junkes, Castanho, et al., 2003 | Program: not specified |
Capillary | Methyl Silicone | 817. | Estrada and Gutierrez, 1999 | Program: not specified |
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.
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]
Higgins and Bartmess, 1998
Higgins, P.R.; Bartmess, J.E.,
The Gas Phase Acidities of Long Chain Alcohols.,
Int. J. Mass Spectrom., 1998, 175, 1-2, 71-79, https://doi.org/10.1016/S0168-1176(98)00125-6
. [all data]
Boand, Houriet, et al., 1983
Boand, G.; Houriet, R.; Baumann, T.,
The gas phase acidity of aliphatic alcohols,
J. Am. Chem. Soc., 1983, 105, 2203. [all data]
Dallos, Sisak, et al., 2000
Dallos, A.; Sisak, A.; Kulcsár, Z.; Kováts, E.,
Pair-wise interactions by gas chromatography VII. Interaction free enthalpies of solutes with secondary alcohol groups,
J. Chromatogr. A, 2000, 904, 2, 211-242, https://doi.org/10.1016/S0021-9673(00)00908-0
. [all data]
Reddy, Dutoit, et al., 1992
Reddy, K.S.; Dutoit, J.-Cl.; Kovats, E. sz.,
Pair-wise interactions by gas chromatography. I. Interaction free enthalpies of solutes with non-associated primary alcohol groups,
J. Chromatogr., 1992, 609, 1-2, 229-259, https://doi.org/10.1016/0021-9673(92)80167-S
. [all data]
Dutoit, 1991
Dutoit, J.,
Gas chromatographic retention behaviour of some solutes on structurally similar polar and non-polar stationary phases,
J. Chromatogr., 1991, 555, 1-2, 191-204, https://doi.org/10.1016/S0021-9673(01)87179-X
. [all data]
Riedo, Fritz, et al., 1976
Riedo, F.; Fritz, D.; Tarján, G.; Kováts, E.Sz.,
A tailor-made C87 hydrocarbon as a possible non-polar standard stationary phase for gas chromatography,
J. Chromatogr., 1976, 126, 63-83, https://doi.org/10.1016/S0021-9673(01)84063-2
. [all data]
Pías and Gascó, 1975
Pías, J.B.; Gascó, L.,
GC Retention Data of Alcohols and Benzoyl Derivatives of Alcohols,
J. Chromatogr. - Chrom. Data, 1975, d14-d16. [all data]
Bonastre and Grenier, 1968
Bonastre, J.; Grenier, P.,
Contribution à l'étude de la polarité des phases stationnaires en chromatographie gaz-liquide. III. Calcul des coefficients d'activité relatifs et des indices de rétention de quelques alcools aliphatiques,
Bull. Soc. Chim. Fr., 1968, 1, 118-125. [all data]
Zhou and Wu, 2007
Zhou, L.; Wu, Q.,
Model of artificial neural network for quantitative structure-retention relations of saturated alcohols,
J. Southwest Univ. (Nat. Sci. Edn.), 2007, 33, 6, 1369-1372. [all data]
Chen and Feng, 2007
Chen, Y.; Feng, C.,
QSPR study on gas chromatography retention index of some organic pollutants,
Comput. Appl. Chem. (China), 2007, 24, 10, 1404-1408. [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]
Kou, Zhang, et al., 2006
Kou, J.; Zhang, S.; Hu, Y.; Qiao, H.; Li, J.,
Stidy on the relationships between structures and gas chromatographic retention indices of alcohols,
Comput. Appl. Chem. (Chinese), 2006, 23, 7, 651-654. [all data]
Fu and Wang, 2004
Fu, S.-P.; Wang, Y.-Q.,
Estimation and prediction of gas chromatographic retention indices of alcohols by molecular electronegativity-distance vector,
J. Chongqing Univ., 2004, 27, 6, 106-109. [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]
Notes
Go To: Top, Gas phase ion energetics data, Mass spectrum (electron ionization), Gas Chromatography, References
- Symbols used in this document:
AE Appearance energy 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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