4-tert-Butyltoluene

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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
Tboil464. ± 3.KAVGN/AAverage of 12 values; Individual data points
Quantity Value Units Method Reference Comment
Tfus222. ± 7.KAVGN/AAverage of 8 values; Individual data points
Quantity Value Units Method Reference Comment
Δvap12.5 ± 0.02kcal/molGSVerevkin, Kozlova, et al., 2008Based on data from 279. to 323. K.; AC
Δvap12.5 ± 0.1kcal/molN/AVerevkin, 1998AC

Enthalpy of vaporization

ΔvapH (kcal/mol) Temperature (K) Method Reference Comment
12.5 ± 0.1296.GSVerevkin, 1998Based on data from 279. to 314. K.; AC
11.7357.AStephenson and Malanowski, 1987Based on data from 342. to 465. K. See also Fel'dman, Savko, et al., 1973.; AC

In addition to the Thermodynamics Research Center (TRC) data available from this site, much more physical and chemical property data is available from the following TRC products:


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, John E. Bartmess, Joel F. Liebman, John L. Holmes, Rhoda D. Levin, and W. Gary Mallard

View reactions leading to C11H16+ (ion structure unspecified)

Ionization energy determinations

IE (eV) Method Reference Comment
8.28 ± 0.02EIOrlov, Misharev, et al., 1986 
8.12PEBaidin, Misharev, et al., 1985 
8.31PEBaidin, Misharev, et al., 1985Vertical value

Appearance energy determinations

Ion AE (eV) Other Products MethodReferenceComment
C10H13+9.6 ± 0.1CH3EIOrlov, Misharev, et al., 1986 

References

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Verevkin, Kozlova, et al., 2008
Verevkin, Sergey P.; Kozlova, Svetlana A.; Emel'yanenko, Vladimir N.; Goodrich, Peter; Hardacre, Christopher, Thermochemistry of Ionic Liquid-Catalyzed Reactions. Experimental and Theoretical Study of Chemical Equilibria of Isomerization and Transalkylation of tert -Butylbenzenes, J. Phys. Chem. A, 2008, 112, 44, 11273-11282, https://doi.org/10.1021/jp806410x . [all data]

Verevkin, 1998
Verevkin, Sergey P., Thermochemical properties of branched alkylsubstituted benzenes, The Journal of Chemical Thermodynamics, 1998, 30, 8, 1029-1040, https://doi.org/10.1006/jcht.1998.0370 . [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]

Fel'dman, Savko, et al., 1973
Fel'dman, I.N.; Savko, V.V.; Mamai, U.I.; Finkel'shtein, M.F., Russ. J. Phys. Chem., 1973, 47, 1531. [all data]

Orlov, Misharev, et al., 1986
Orlov, V.; Misharev, A.; Takhistox, V., Determination of the enthalpy of formation of para-substituted α,α-dimethyl cations in the gas phase, Izv. Akad. Nauk SSSR Ser. Khim., 1986, 9, 2006. [all data]

Baidin, Misharev, et al., 1985
Baidin, V.N.; Misharev, A.D.; Takhistov, V.V., Effect of alkyl substituents on the ionization potentials of halogenobenzenes, Zh. Org. Khim., 1985, 21, 817. [all data]


Notes

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