Benzene, 1,3,5-tri-tert-butyl-

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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: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

Quantity Value Units Method Reference Comment
Δfliquid-306.8 ± 2.3kJ/molEqkNesterova, Verevkin, et al., 1984GLC
Quantity Value Units Method Reference Comment
Δcsolid-11049. ± 4.kJ/molCmKruerke, Hoogzand, et al., 1961Corresponding Δfsolid = -322. 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
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

Quantity Value Units Method Reference Comment
Tboil521.2KN/AWeast and Grasselli, 1989BS
Quantity Value Units Method Reference Comment
Tfus345.05KN/AArnett, Sanda, et al., 1967Uncertainty assigned by TRC = 0.5 K; TRC
Tfus346.3KN/ADavies and Kybett, 1965Uncertainty assigned by TRC = 0.5 K; TRC
Tfus346.8KN/AOgimachi, Andrews, et al., 1955Uncertainty assigned by TRC = 0.7 K; TRC
Quantity Value Units Method Reference Comment
Δsub81.2 ± 0.3kJ/molN/AVerevkin, 1998AC
Δsub79.7 ± 0.4kJ/molVDavies and Kybett, 1965ALS

Reduced pressure boiling point

Tboil (K) Pressure (bar) Reference Comment
394.70.016Weast and Grasselli, 1989BS
401. to 403.0.024Frinton Laboratories Inc., 1986BS

Enthalpy of sublimation

ΔsubH (kJ/mol) Temperature (K) Method Reference Comment
79.9 ± 0.3319.TVerevkin, 1998Based on data from 298. to 341. K.; AC
79.7 ± 0.4294.MEDavies and Kybett, 1965Based on data from 273. to 315. K. See also Stephenson and Malanowski, 1987.; 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:


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

Benzene, 1,3,5-tri-tert-butyl- + Benzene, tert-butyl- = Benzene, 1,4-bis(1,1-dimethylethyl)- + Benzene, 1,3-bis(1,1-dimethylethyl)-

By formula: C18H30 + C10H14 = C14H22 + C14H22

Quantity Value Units Method Reference Comment
Δr1.0 ± 1.1kJ/molEqkNesterova, Verevkin, et al., 1984liquid phase; GLC

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 evaluated as indicated in comments:
HL - Edward P. Hunter and Sharon G. Lias

Data compiled as indicated in comments:
LBLHLM - Sharon G. Lias, John E. Bartmess, Joel F. Liebman, John L. Holmes, Rhoda D. Levin, and W. Gary Mallard
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron

Quantity Value Units Method Reference Comment
Proton affinity (review)848.8kJ/molN/AHunter and Lias, 1998HL
Quantity Value Units Method Reference Comment
Gas basicity822.3kJ/molN/AHunter and Lias, 1998HL

Ionization energy determinations

IE (eV) Method Reference Comment
8.56 ± 0.07EIArnett, Sanda, et al., 1967RDSH
8.19PEHowell, Goncalves, et al., 1984Vertical value; LBLHLM
8.46PECetinkaya, Lappert, et al., 1983Vertical value; LBLHLM

Appearance energy determinations

Ion AE (eV) Other Products MethodReferenceComment
C17H27+11.91 ± 0.07CH3EIArnett, Sanda, et al., 1967RDSH

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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IR spectrum
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Additional Data

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Owner SRD/NIST
Collection (C) 2018 copyright by the U.S. Secretary of Commerce
on behalf of the United States of America. All rights reserved.
Origin EPA-IR VAPOR PHASE LIBRARY
State gas

This IR spectrum is from the NIST/EPA Gas-Phase Infrared Database .


Mass spectrum (electron ionization)

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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

Spectrum

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Mass spectrum
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Additional Data

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Due to licensing restrictions, this spectrum cannot be downloaded.

Owner NIST Mass Spectrometry Data Center
Collection (C) 2014 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, 1994
NIST MS number 135817

All mass spectra in this site (plus many more) are available from the NIST/EPA/NIH Mass Spectral Library. Please see the following for information about the library and its accompanying search program.


References

Go To: Top, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, Gas phase ion energetics data, IR Spectrum, Mass spectrum (electron ionization), Notes

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

Nesterova, Verevkin, et al., 1984
Nesterova, T.N.; Verevkin, S.R.; Karaseva, S.Ya.; Rozhnov, A.M.; Tsvetkov, V.F., The equilibria in the interconversions of t-butylbenzenes, Russ. J. Phys. Chem. (Engl. Transl.), 1984, 58, 297-298. [all data]

Kruerke, Hoogzand, et al., 1961
Kruerke, U.; Hoogzand, C.; Hubel, W., Uber organometall-komplexe, VI 1.2.4-tri-tert.-butyl-benzol, Chem. Ber., 1961, 94, 2817-2820. [all data]

Weast and Grasselli, 1989
CRC Handbook of Data on Organic Compounds, 2nd Editon, Weast,R.C and Grasselli, J.G., ed(s)., CRC Press, Inc., Boca Raton, FL, 1989, 1. [all data]

Arnett, Sanda, et al., 1967
Arnett, E.M.; Sanda, J.C.; Bollinger, J.M.; Barber, M., Crowded benzenes. VI. The strain energy in o-di-tbutylbenzenes, J. Am. Chem. Soc., 1967, 89, 5389. [all data]

Davies and Kybett, 1965
Davies, M.; Kybett, B., Sublimation and vaporization heats of long-chain alcohols, Trans. Faraday Soc., 1965, 61, 1608. [all data]

Ogimachi, Andrews, et al., 1955
Ogimachi, N.N.; Andrews, L.J.; Keefer, R.M., The Free Energies and Heats of Formation of Polyalkoxybenzene-Iodine Monochloride Complexes, J. Am. Chem. Soc., 1955, 77, 4202. [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]

Frinton Laboratories Inc., 1986
Frinton Laboratories Inc., Catalog Number 11, Frinton Laboratories Inc., Vineland, NJ, 1986, 99. [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]

Hunter and Lias, 1998
Hunter, E.P.; Lias, S.G., Evaluated Gas Phase Basicities and Proton Affinities of Molecules: An Update, J. Phys. Chem. Ref. Data, 1998, 27, 3, 413-656, https://doi.org/10.1063/1.556018 . [all data]

Howell, Goncalves, et al., 1984
Howell, J.O.; Goncalves, J.M.; Amatore, C.; Klasinc, L.; Wightman, R.M.; Kochi, J.K., Electron transfer from aromatic hydrocarbons and their π-complexes with metals. Comparison of the standard oxidation potentials and vertical ionization potentials, J. Am. Chem. Soc., 1984, 106, 3968. [all data]

Cetinkaya, Lappert, et al., 1983
Cetinkaya, B.; Lappert, M.F.; Suffolk, R.J., Photoelectron spectra of some sterically hindered phenols and related compounds, J. Chem. Res. Synop., 1983, 316. [all data]


Notes

Go To: Top, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, Gas phase ion energetics data, IR Spectrum, Mass spectrum (electron ionization), References