3-Pentanol, 2,2-dimethyl-
- Formula: C7H16O
- Molecular weight: 116.2013
- IUPAC Standard InChIKey: HMSVXZJWPVIVIV-UHFFFAOYSA-N
- CAS Registry Number: 3970-62-5
- 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: 2,2-Dimethyl-3-pentanol; 2,2-dimethylpentan-3-ol
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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
AC - William E. Acree, Jr., James S. Chickos
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tboil | 409. ± 6. | K | AVG | N/A | Average of 11 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
Tfus | 282.45 | K | N/A | Boord, Greenlee, et al., 1949 | Uncertainty assigned by TRC = 0.5 K; TRC |
Enthalpy of vaporization
ΔvapH (kcal/mol) | Temperature (K) | Reference | Comment |
---|---|---|---|
12.3 | 333. | Wilhoit and Zwolinski, 1973 | Based on data from 318. to 411. K.; AC |
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
C7H15O- + =
By formula: C7H15O- + H+ = C7H16O
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 369.8 ± 2.0 | kcal/mol | D-EA | Mihalick, Gatev, et al., 1996 | gas phase; Derived BDE: 104.2±2.8 kcal/mol |
ΔrH° | 370.0 ± 2.1 | kcal/mol | G+TS | Bartmess, Scott, et al., 1979 | gas phase; value altered from reference due to change in acidity scale |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 363.2 ± 2.2 | kcal/mol | H-TS | Mihalick, Gatev, et al., 1996 | gas phase; Derived BDE: 104.2±2.8 kcal/mol |
ΔrG° | 363.4 ± 2.0 | kcal/mol | IMRE | Bartmess, Scott, et al., 1979 | gas phase; value altered from reference due to change in acidity scale |
By formula: F- + C7H16O = (F- • C7H16O)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 33.80 | kcal/mol | N/A | Mihalick, Gatev, et al., 1996 | gas phase; affinity derived using a ROH..F. neutral binding energy of 10.3 kcal/mol. |
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: John E. Bartmess
De-protonation reactions
C7H15O- + =
By formula: C7H15O- + H+ = C7H16O
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 369.8 ± 2.0 | kcal/mol | D-EA | Mihalick, Gatev, et al., 1996 | gas phase; Derived BDE: 104.2±2.8 kcal/mol |
ΔrH° | 370.0 ± 2.1 | kcal/mol | G+TS | Bartmess, Scott, et al., 1979 | gas phase; value altered from reference due to change in acidity scale |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 363.2 ± 2.2 | kcal/mol | H-TS | Mihalick, Gatev, et al., 1996 | gas phase; Derived BDE: 104.2±2.8 kcal/mol |
ΔrG° | 363.4 ± 2.0 | kcal/mol | IMRE | Bartmess, Scott, et al., 1979 | gas phase; value altered from reference due to change in acidity scale |
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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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 | CHEMICAL SAMPLES COMPANY |
NIST MS number | 31029 |
Gas Chromatography
Go To: Top, Phase change data, Reaction thermochemistry data, 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 | SE-30 | 100. | 814. | Pías and Gascó, 1975 | Ar, Chromosorb W AW DMCS HP (80-100 mesh); Column length: 1. m |
Packed | SE-30 | 120. | 815. | Pías and Gascó, 1975 | Ar, Chromosorb W AW DMCS HP (80-100 mesh); Column length: 1. m |
Packed | SE-30 | 140. | 817. | Pías and Gascó, 1975 | Ar, Chromosorb W AW DMCS HP (80-100 mesh); Column length: 1. m |
Normal alkane RI, non-polar column, custom temperature program
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | Methyl Silicone | 814. | Chen and Feng, 2007 | Program: not specified |
Capillary | Methyl Silicone | 814. | Kou, Zhang, et al., 2006 | Program: not specified |
Capillary | Methyl Silicone | 814. | Fu and Wang, 2004 | Program: not specified |
Capillary | Polydimethyl siloxane | 806. | Junkes, Castanho, et al., 2003 | Program: not specified |
References
Go To: Top, Phase change data, Reaction thermochemistry data, 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.
Boord, Greenlee, et al., 1949
Boord, C.E.; Greenlee, K.W.; Perilstein, W.L.; Derfer, J.M.,
The Synthesis, Purification and Prop. of Hydrocarbons of Low Mol. Wt., Am. Pet. Inst. Res. Proj. 45, Eleventh Annu. Rep., Ohio State Univ., 1949. [all data]
Wilhoit and Zwolinski, 1973
Wilhoit, R.C.; Zwolinski, B.J.,
Physical and thermodynamic properties of aliphatic alcohols,
J. Phys. Chem. Ref. Data Suppl., 1973, 1, 2, 1. [all data]
Mihalick, Gatev, et al., 1996
Mihalick, J.E.; Gatev, G.G.; Brauman, J.I.,
Electron Photodetachment Spectroscopy of Solvated Anions: RO.HF- or ROH.F-?,
J. Am. Chem. Soc., 1996, 118, 49, 12424, https://doi.org/10.1021/ja954202k
. [all data]
Bartmess, Scott, et al., 1979
Bartmess, J.E.; Scott, J.A.; McIver, R.T., Jr.,
The gas phase acidity scale from methanol to phenol,
J. Am. Chem. Soc., 1979, 101, 6047. [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]
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]
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]
Notes
Go To: Top, Phase change data, Reaction thermochemistry data, Gas phase ion energetics data, Mass spectrum (electron ionization), Gas Chromatography, References
- Symbols used in this document:
Tboil Boiling point Tfus Fusion (melting) point ΔrG° Free energy of reaction at standard conditions ΔrH° Enthalpy of reaction at standard conditions ΔvapH Enthalpy of vaporization - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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