1-Butene, 2,3-dimethyl-
- Formula: C6H12
- Molecular weight: 84.1595
- IUPAC Standard InChIKey: OWWIWYDDISJUMY-UHFFFAOYSA-N
- CAS Registry Number: 563-78-0
- 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. - Species with the same structure:
- Other names: 2,3-Dimethyl-1-butene; (CH3)2CHC(CH3)=CH2; 2,3-Dimethylbutene-1; 2,3-dimethylbut-1-ene
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Gas phase thermochemistry data
Go To: Top, Condensed phase thermochemistry data, Phase change data, 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: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°gas | -65.9 ± 1.5 | kJ/mol | Ccb | Wiberg and Hao, 1991 | |
ΔfH°gas | -61. ± 2. | kJ/mol | Eqk | Rodgers and Wu, 1971 | Heat of isomerization |
Condensed 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: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°liquid | -95.1 ± 1.5 | kJ/mol | Ccb | Wiberg and Hao, 1991 |
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
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tboil | 329.0 ± 0.6 | K | AVG | N/A | Average of 19 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
Tfus | 120. ± 20. | K | AVG | N/A | Average of 8 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
ΔvapH° | 29.2 | kJ/mol | N/A | Reid, 1972 | AC |
ΔvapH° | 29.2 | kJ/mol | V | Camin and Rossini, 1956 | ALS |
ΔvapH° | 29.2 | kJ/mol | N/A | Camin and Rossini, 1956, 2 | Based on data from 289. to 329. K.; AC |
Enthalpy of vaporization
ΔvapH (kJ/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
30.5 | 282. | A | Stephenson and Malanowski, 1987 | Based on data from 267. to 335. K.; AC |
References
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Wiberg and Hao, 1991
Wiberg, K.B.; Hao, S.,
Enthalpies of hydration of alkenes. 4. Formation of acyclic tert-alcohols,
J. Org. Chem., 1991, 56, 5108-5110. [all data]
Rodgers and Wu, 1971
Rodgers, A.S.; Wu, M.-C.R.,
Thermochemistry of the gas-phase iodine catalyzed isomerization: 2,3-dimethyl-1-butene = 2,3-dimethyl-2-butene,
J. Chem. Thermodyn., 1971, 3, 591-597. [all data]
Reid, 1972
Reid, Robert C.,
Handbook on vapor pressure and heats of vaporization of hydrocarbons and related compounds, R. C. Wilhort and B. J. Zwolinski, Texas A Research Foundation. College Station, Texas(1971). 329 pages.$10.00,
AIChE J., 1972, 18, 6, 1278-1278, https://doi.org/10.1002/aic.690180637
. [all data]
Camin and Rossini, 1956
Camin, D.L.; Rossini, F.D.,
Physical properties of the 17 isomeric hexenes of the API research series,
J. Phys. Chem., 1956, 60, 1446. [all data]
Camin and Rossini, 1956, 2
Camin, David L.; Rossini, Frederick D.,
Physical Properties of the 17 Isomeric Hexenes.of the API Research Series,
J. Phys. Chem., 1956, 60, 10, 1446-1451, https://doi.org/10.1021/j150544a029
. [all data]
Stephenson and Malanowski, 1987
Stephenson, Richard M.; Malanowski, Stanislaw,
Handbook of the Thermodynamics of Organic Compounds, 1987, https://doi.org/10.1007/978-94-009-3173-2
. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, References
- Symbols used in this document:
Tboil Boiling point Tfus Fusion (melting) point ΔfH°gas Enthalpy of formation of gas at standard conditions ΔfH°liquid Enthalpy of formation of liquid at standard conditions ΔvapH Enthalpy of vaporization ΔvapH° Enthalpy of vaporization at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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