1-Propanol, 2-methyl-
- Formula: C4H10O
- Molecular weight: 74.1216
- IUPAC Standard InChIKey: ZXEKIIBDNHEJCQ-UHFFFAOYSA-N
- CAS Registry Number: 78-83-1
- 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: Isobutyl alcohol; Isobutanol; Isopropylcarbinol; 2-Methyl-1-propanol; iso-C4H9OH; Fermentation butyl alcohol; 1-Hydroxymethylpropane; 2-Methylpropanol; 2-Methylpropan-1-ol; 2-Methylpropanol-1; 2-Methylpropyl alcohol; Butanol-iso; Alcool isobutylique; Isobutylalkohol; Rcra waste number U140; UN 1212; i-Butyl alcohol; Isopropyl carbitol; Propanol, 2-methyl-; 2-methyl-1-propanyl alcohol; i-Butanol; Methyl-2 propanol-1; NSC 5708; 2-methylpropanoI
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Reaction thermochemistry data
Go To: Top, 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
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
RCD - Robert C. Dunbar
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
C4H9O- + =
By formula: C4H9O- + H+ = C4H10O
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1567. ± 8.4 | kJ/mol | CIDC | Haas and Harrison, 1993 | gas phase; Both metastable and 50 eV collision energy.; B |
ΔrH° | 1568. ± 8.8 | kJ/mol | G+TS | Bartmess, Scott, et al., 1979 | gas phase; value altered from reference due to change in acidity scale; B |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1539. ± 8.8 | kJ/mol | H-TS | Haas and Harrison, 1993 | gas phase; Both metastable and 50 eV collision energy.; B |
ΔrG° | 1540. ± 8.4 | kJ/mol | IMRE | Bartmess, Scott, et al., 1979 | gas phase; value altered from reference due to change in acidity scale; B |
By formula: H2 + C4H8O = C4H10O
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | -87.4 ± 0.3 | kJ/mol | Cm | Wiberg, Crocker, et al., 1991 | liquid phase; ALS |
ΔrH° | -68.1 ± 0.9 | kJ/mol | Eqk | Connett, 1975 | gas phase; Heat of dehydrogenation; ALS |
By formula: Na+ + C4H10O = (Na+ • C4H10O)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 105. ± 5.9 | kJ/mol | CIDT | Rodgers and Armentrout, 2000 | RCD |
ΔrH° | 105. ± 5.9 | kJ/mol | CIDT | Rodgers and Armentrout, 1999 | RCD |
By formula: C4H10O = H2 + C4H8O
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 68.1 ± 0.9 | kJ/mol | Eqk | Connett, 1975 | gas phase; Heat of dehydrogenation; ALS |
By formula: C4H8 + C4H10O = C8H18O
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | -36.3 ± 1.8 | kJ/mol | Eqk | Sharonov, Mishentseva, et al., 1991 | liquid phase; ALS |
By formula: C2H2O + C4H10O = C6H12O2
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | -143.8 | kJ/mol | Cm | Rice and Greenberg, 1934 | liquid phase; ALS |
By formula: Li+ + C4H10O = (Li+ • C4H10O)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 169. ± 7.9 | kJ/mol | CIDT | Rodgers and Armentrout, 2000 | RCD |
References
Go To: Top, Reaction thermochemistry data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
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]
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]
Wiberg, Crocker, et al., 1991
Wiberg, K.B.; Crocker, L.S.; Morgan, K.M.,
Thermochemical studies of carbonyl compounds. 5. Enthalpies of reduction of carbonyl groups,
J. Am. Chem. Soc., 1991, 113, 3447-3450. [all data]
Connett, 1975
Connett, J.E.,
Chemical equilibria 6. Measurement of equilibrium constants for the dehydrogenation of 2-methylpropan-1-ol by a vapour-flow technique,
J. Chem. Thermodyn., 1975, 7, 1159-1162. [all data]
Rodgers and Armentrout, 2000
Rodgers, M.T.; Armentrout, P.B.,
Noncovalent Metal-Ligand Bond Energies as Studied by Threshold Collision-Induced Dissociation,
Mass Spectrom. Rev., 2000, 19, 4, 215, https://doi.org/10.1002/1098-2787(200007)19:4<215::AID-MAS2>3.0.CO;2-X
. [all data]
Rodgers and Armentrout, 1999
Rodgers, M.T.; Armentrout, P.B.,
Absolute Binding Energies of Sodium Ions to Short-Chain Alcohols, CnH2n+2O, n=1-4, Determined by Threshold Collision-Induced Dissociation Experiments and Ab Initio Theory, 1999, 4955. [all data]
Sharonov, Mishentseva, et al., 1991
Sharonov, K.G.; Mishentseva, Y.B.; Rozhnov, A.M.; Miroshnichenko, E.A.; Korchatova, L.I.,
Molar enthalpies of formation and vaporizqation of t-butoxybutanes and thermodynamics of their synthesis from a butanol and 2-methylpropene I. Equilibria of synthesis reactions of t-butoxybutanes in the liquid phase,
J. Chem. Thermodyn., 1991, 23, 141-145. [all data]
Rice and Greenberg, 1934
Rice, F.O.; Greenberg, J.,
Ketene. III. Heat of formation and heat of reaction with alcohols,
J. Am. Chem. Soc., 1934, 38, 2268-2270. [all data]
Notes
Go To: Top, Reaction thermochemistry data, References
- Symbols used in this document:
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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