1-Buten-3-yne
- Formula: C4H4
- Molecular weight: 52.0746
- IUPAC Standard InChI: InChI=1S/C4H4/c1-3-4-2/h1,4H,2H2
- IUPAC Standard InChIKey: WFYPICNXBKQZGB-UHFFFAOYSA-N
- CAS Registry Number: 689-97-4
- 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: But-1-en-3-yne; Butenyne; Ethene, ethynyl-; Monovinylacetylene; Vinylacetylene; 1-Butene-3-yne; 1-Butyn-3-ene; 3-Buten-1-yne; Buten-3-yne; Ethynylethene; 1-Butenyne; Vinylethyne
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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 as indicated in comments:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
GT - Glushko Thermocenter, Russian Academy of Sciences, Moscow
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔfH°gas | 70.4 | kcal/mol | Chyd | Roth, Adamczak, et al., 1991 | ALS |
Constant pressure heat capacity of gas
| Cp,gas (cal/mol*K) | Temperature (K) | Reference | Comment |
|---|---|---|---|
| 17.49 | 298.15 | Stamm R.F., 1949 | Estimations by difference method and Benson group additivity approach [ Dorofeeva O.V., 1997] show that statistically calculated value of S(298 K) can be overestimated by 5-7 J/mol*K and uncertainties of Cp(T) values can be equal to 4-7 J/mol*K.; GT |
| 17.57 | 300. | ||
| 21.26 | 400. | ||
| 24.250 | 500. | ||
| 26.671 | 600. | ||
| 28.681 | 700. | ||
| 30.399 | 800. | ||
| 31.869 | 900. | ||
| 33.160 | 1000. | ||
| 37.519 | 1100. |
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 |
|---|---|---|---|---|---|
| ΔcH°liquid | -569. | kcal/mol | Ccb | Reppe, Schlichting, et al., 1948 | Corresponding ΔfHºliquid = 56. kcal/mol (simple calculation by NIST; no Washburn corrections) |
Reaction thermochemistry data
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry 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
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
2 =
By formula: 2C2H2 = C4H4
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 55.8 | kcal/mol | Cm | Reppe, Schlichting, et al., 1948 | liquid phase |
| ΔrH° | 49.6 | kcal/mol | Cm | Reppe, Schlichting, et al., 1948 | gas phase |
3 +
=
By formula: 3H2 + C4H4 = C4H10
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | -100.8 ± 0.5 | kcal/mol | Chyd | Roth, Adamczak, et al., 1991 | liquid phase |
References
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Reaction thermochemistry data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Roth, Adamczak, et al., 1991
Roth, W.R.; Adamczak, O.; Breuckmann, R.; Lennartz, H.-W.; Boese, R.,
Die Berechnung von Resonanzenergien; das MM2ERW-Kraftfeld,
Chem. Ber., 1991, 124, 2499-2521. [all data]
Stamm R.F., 1949
Stamm R.F.,
Fundamental vibrational frequencies and thermodynamic functions for vinylacetylene, revised thermodynamic functions for hydrogen cyanide, and thermodynamics of two reactions involved in the synthesis of acrylonitrile,
J. Chem. Phys., 1949, 17, 104-105. [all data]
Dorofeeva O.V., 1997
Dorofeeva O.V.,
Unpublished results. Thermocenter of Russian Academy of Science, Moscow, 1997. [all data]
Reppe, Schlichting, et al., 1948
Reppe, W.; Schlichting, O.; Klager, K.; Toepel, T.,
Cyclisierende Polymerisation von Acetylen I Uber Cyclooctatetraen,
Justus Liebigs Ann. Chem., 1948, 1-93. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Reaction thermochemistry data, References
- Symbols used in this document:
Cp,gas Constant pressure heat capacity of gas ΔcH°liquid Enthalpy of combustion of liquid at standard conditions ΔfH°gas Enthalpy of formation of gas at standard conditions ΔrH° Enthalpy of reaction at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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