trans-β-Methylstyrene
- Formula: C9H10
- Molecular weight: 118.1757
- IUPAC Standard InChIKey: QROGIFZRVHSFLM-QHHAFSJGSA-N
- CAS Registry Number: 873-66-5
- 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. - Stereoisomers:
- Other names: (E)- β-Methylstyrene; trans-Propenylbenzene; Benzene, 1-propenyl-, (E)-; (E)-1-Propenyl benzene
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Gas phase thermochemistry data
Go To: Top, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, IR Spectrum, 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 |
---|---|---|---|---|---|
ΔcH°gas | -5087.95 | kJ/mol | Ccb | Krall and Roberts, 1958 | Corresponding ΔfHºgas = 117.2 kJ/mol (simple calculation by NIST; no Washburn corrections) |
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 | -4985.2 | kJ/mol | Ccb | Auwsers, Roth, et al., 1910 | Corresponding ΔfHºliquid = 15. kJ/mol (simple calculation by NIST; no Washburn corrections) |
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 | 450. ± 3. | K | AVG | N/A | Average of 7 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
Tfus | 246.65 | K | N/A | Park and Wright, 1954 | Uncertainty assigned by TRC = 1. K; TRC |
Tfus | 243.23 | K | N/A | Anonymous, 1953 | Uncertainty assigned by TRC = 0.2 K; TRC |
Tfus | 243.82 | K | N/A | Anonymous, 1953 | Uncertainty assigned by TRC = 0.15 K; TRC |
Tfus | 243.08 | K | N/A | Anonymous, 1952 | Uncertainty assigned by TRC = 0.5 K; TRC |
Tfus | 242.15 | K | N/A | Lespieau, 1930 | Uncertainty assigned by TRC = 4. K; cis-trans isomer not identified, but m.p. corr. approx. to cis-; TRC |
Enthalpy of vaporization
ΔvapH (kJ/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
46.4 | 306. | A | Stephenson and Malanowski, 1987 | Based on data from 291. to 452. K. See also Stull, 1947.; 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: 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
By formula: H2 + C9H10 = C9H12
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | -105.9 ± 1.3 | kJ/mol | Chyd | Abboud, Jimenez, et al., 1995 | liquid phase; solvent: Hyrocarbon; Like gas phase |
By formula: C9H10 = C9H10
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | -11.0 ± 0.3 | kJ/mol | Eqk | Taskinen and Lindholm, 1994 | liquid phase; solvent: DMSO; Heat of isomerization |
By formula: C9H10 = C9H10
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | -23.3 ± 0.5 | kJ/mol | Eqk | Taskinen and Lindholm, 1994 | liquid phase; solvent: DMSO |
By formula: C9H10 = C9H10
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | -20.1 | kJ/mol | Eqk | Taskinen and Lindholm, 1994 | gas phase; Heat of isomerization |
IR Spectrum
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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
Gas Phase Spectrum
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Notice: Concentration information is not available for this spectrum and, therefore, molar absorptivity values cannot be derived.
Additional Data
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Owner | NIST Standard Reference Data Program Collection (C) 2018 copyright by the U.S. Secretary of Commerce on behalf of the United States of America. All rights reserved. |
---|---|
Origin | NIST Mass Spectrometry Data Center |
State | gas |
Instrument | HP-GC/MS/IRD |
References
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, IR Spectrum, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Krall and Roberts, 1958
Krall, R.E.; Roberts, J.D.,
Strain variation in the unsaturated cyclobutane ring,
Am. Chem. Soc. Div. Pet. Chem., 1958, 3, 63-68. [all data]
Auwsers, Roth, et al., 1910
Auwsers, K.; Roth, W.A.; Eisenlohr, F.,
III. Verbrennungswarmen von Terpenen und Styrolen,
Justus Liebigs Ann. Chem., 1910, 267-290. [all data]
Park and Wright, 1954
Park, W.R.R.; Wright, G.F.,
J. Org. Chem., 1954, 19, 1435. [all data]
Anonymous, 1953
Anonymous, R.,
, Physical Properties of Chemical Substances, Dow Chemical Company, 1953. [all data]
Anonymous, 1952
Anonymous, R.,
, Physical Properties of Chemical Substances, Dow Chemical Co., 1952. [all data]
Lespieau, 1930
Lespieau, R.,
Preparation of the β Dibromides of Trimethylenic Hydrocarbons,
Bull. Soc. Chim. Fr., 1930, 47, 847. [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]
Stull, 1947
Stull, Daniel R.,
Vapor Pressure of Pure Substances. Organic and Inorganic Compounds,
Ind. Eng. Chem., 1947, 39, 4, 517-540, https://doi.org/10.1021/ie50448a022
. [all data]
Abboud, Jimenez, et al., 1995
Abboud, J.-L.M.; Jimenez, P.; Roux, M.V.; Turrion, C.; Lopez-Mardomingo, C.; Podosenin, A.; Rogers, D.W.; Liebman, J.F.,
Interrelations of the energetics of amides and alkenes: enthalpies of formation of N,N-dimethyl dertivatives of pivalamide, 1-adamantylcarboxamide and benzamide, and of styrene and its a-, trans-β- and β,β-methylated derivates,
J. Phys. Org. Chem., 1995, 8, 15-25. [all data]
Taskinen and Lindholm, 1994
Taskinen, E.; Lindholm, N.,
Relative thermodynamic stabilities of the isomeric propenylbenzenes,
J. Phys. Org. Chem., 1994, 7, 256-258. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, IR Spectrum, References
- Symbols used in this document:
Tboil Boiling point Tfus Fusion (melting) point ΔcH°gas Enthalpy of combustion of gas at standard conditions ΔcH°liquid Enthalpy of combustion of liquid 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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