1,1'-Biphenyl, 2-ethyl-
- Formula: C14H14
- Molecular weight: 182.2610
- IUPAC Standard InChI: InChI=1S/C14H14/c1-2-12-8-6-7-11-14(12)13-9-4-3-5-10-13/h3-11H,2H2,1H3
- IUPAC Standard InChIKey: DLMYHUARHITGIJ-UHFFFAOYSA-N
- CAS Registry Number: 1812-51-7
- 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: Biphenyl, 2-ethyl-; o-Ethylbiphenyl; 2-Ethylbiphenyl; 1-Ethyl-2-phenylbenzene
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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 as indicated in comments:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DH - Eugene S. Domalski and Elizabeth D. Hearing
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔcH°liquid | -7585.2 | kJ/mol | Ccb | Wise, Serijan, et al., 1951 | Corresponding ΔfHºliquid = 75.3 kJ/mol (simple calculation by NIST; no Washburn corrections); ALS |
| ΔcH°liquid | -7280. | kJ/mol | Ccb | Goodman and Wise, 1950 | Corresponding ΔfHºliquid = -230. kJ/mol (simple calculation by NIST; no Washburn corrections); ALS |
| Quantity | Value | Units | Method | Reference | Comment |
| S°liquid | 332.69 | J/mol*K | N/A | Chirico, Hossenloop, et al., 1987 | DH |
Constant pressure heat capacity of liquid
| Cp,liquid (J/mol*K) | Temperature (K) | Reference | Comment |
|---|---|---|---|
| 302.73 | 298.15 | Chirico, Hossenloop, et al., 1987 | T = 5 to 440 K.; DH |
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: C14H14 = C14H14
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | -12.6 | kJ/mol | Eqk | Roshchupkina, Nesterova, et al., 1987 | liquid phase; T=385.6 K |
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: Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
Ionization energy determinations
| IE (eV) | Method | Reference | Comment |
|---|---|---|---|
| 8.55 ± 0.02 | PE | Maier and Turner, 1972 | Vertical value |
References
Go To: Top, Condensed phase thermochemistry data, Reaction thermochemistry data, Gas phase ion energetics data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Wise, Serijan, et al., 1951
Wise, C.H.; Serijan, K.T.; Goodman, I.A.,
NACA Technical Report 1003,
NACA Technical Report 1003, 1951, 1-10. [all data]
Goodman and Wise, 1950
Goodman, I.A.; Wise, P.H.,
Dicyclic hydrocarbons. I. 2-Aklylbiphenyls,
J. Am. Chem. Soc., 1950, 72, 3076-3078. [all data]
Chirico, Hossenloop, et al., 1987
Chirico, R.D.; Hossenloop, I.A.; Nguyen, A.; Strube, M.M.; Steele, W.V.,
Thermodynamic studies related to the hydrogenation of phenanthrene,
NIPER Report, 1987, 247, 107p. [all data]
Roshchupkina, Nesterova, et al., 1987
Roshchupkina, I.Yu.; Nesterova, T.N.; Rozhnov, A.M.,
Equilibria of isomeric transformations of alkylbiphenyls,
J. Chem. Thermodyn., 1987, 19, 299-306. [all data]
Maier and Turner, 1972
Maier, J.P.; Turner, D.W.,
Steric inhibition of resonance studied by molecular photoelectron spectroscopy. Part I. Biphenyls,
Faraday Discuss. Chem. Soc., 1972, 54, 149. [all data]
Notes
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- Symbols used in this document:
Cp,liquid Constant pressure heat capacity of liquid S°liquid Entropy of liquid at standard conditions ΔcH°liquid Enthalpy of combustion of liquid at standard conditions ΔrH° Enthalpy of reaction at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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