4,4'-Diisopropylbiphenyl
- Formula: C18H22
- Molecular weight: 238.3673
- IUPAC Standard InChI: InChI=1S/C18H22/c1-13(2)15-5-9-17(10-6-15)18-11-7-16(8-12-18)14(3)4/h5-14H,1-4H3
- IUPAC Standard InChIKey: NUEUMFZLNOCRCQ-UHFFFAOYSA-N
- CAS Registry Number: 18970-30-4
- 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: 1,1'-Biphenyl, 4,4'-bis-(1-methylethyl); 1,1'-Biphenyl, 4,4'-diisopropyl; p,p'-Diisopropylbiphenyl; Biphenyl, 4,4'-diisopropyl-; 3,4'-Diisopropylbiphenyl
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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 by: Eugene S. Domalski and Elizabeth D. Hearing
Constant pressure heat capacity of liquid
| Cp,liquid (cal/mol*K) | Temperature (K) | Reference | Comment |
|---|---|---|---|
| 124.4 | 422. | McEwen, March 31 1956 | T = 300 to 600°F. |
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 by: Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| Tboil | 608. | K | N/A | Bert, 1923 | Uncertainty assigned by TRC = 10. K; this sample was probably 2-phenyl-2-(p-isopropylphenyl)-propane. See 1929 boe 0 |
| Quantity | Value | Units | Method | Reference | Comment |
| Tfus | 339. | K | N/A | Everitt, Hall, et al., 1956 | Uncertainty assigned by TRC = 4. K |
| Tfus | 322. | K | N/A | Boedtker, 1929 | Uncertainty assigned by TRC = 3. K |
| Tfus | 338. | K | N/A | Bert, 1923 | Uncertainty assigned by TRC = 20. K; this material was probably 2-phenyl-2-(p-isopropylphenyl)-propane. See 1929 boe 0 |
| Tfus | 322. | K | N/A | Schreiner, 1911 | Uncertainty assigned by TRC = 2. K |
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: C18H22 = C18H22
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 0.11 ± 0.01 | kcal/mol | Eqk | Roshchupkina, Nesterova, et al., 1987 | liquid phase; T=367.3 K |
References
Go To: Top, Condensed phase thermochemistry data, Phase change 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.
McEwen, March 31 1956
McEwen, M.,
Preliminary engineering study of organic nuclear reactor coolant-moderators Monsanto Chemical Co, March 31 1956. [all data]
Bert, 1923
Bert, L.,
C. R. Hebd. Seances Acad. Sci., 1923, 177, 452. [all data]
Everitt, Hall, et al., 1956
Everitt, P.M.; Hall, D.M.; Turner, E.E.,
Relation Between Configuration and Conjugation in Biphenyl Derivatives,
J. Chem. Soc., 1956, 1956, 2286-90. [all data]
Boedtker, 1929
Boedtker, E.,
Bull. Soc. Chim. Fr., 1929, 45, 645. [all data]
Schreiner, 1911
Schreiner,
J. Prakt. Chem., 1911, 81, 422. [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]
Notes
Go To: Top, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, References
- Symbols used in this document:
Cp,liquid Constant pressure heat capacity of liquid Tboil Boiling point Tfus Fusion (melting) point ΔrH° Enthalpy of reaction at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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