Phenol, 2-(1,1-dimethylethyl)-4-methyl-

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Gas 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

Quantity Value Units Method Reference Comment
Δfgas-52.0kcal/molSemiStewart, 2004 
Δfgas-49.47 ± 0.76kcal/molEqkVerevkin, Nesterova, et al., 1984ALS

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
Tboil510.2KN/AWeast and Grasselli, 1989BS
Quantity Value Units Method Reference Comment
Tfus325.16KN/AWitschonke, 1954Uncertainty assigned by TRC = 0.3 K; TRC
Tfus325.45KN/AWitschonke, 1954Uncertainty assigned by TRC = 0.2 K; TRC
Quantity Value Units Method Reference Comment
Δvap15.7 ± 0.07kcal/molGSVerevkin, 1999Based on data from 327. to 358. K.; AC
Quantity Value Units Method Reference Comment
Δsub19.8 ± 0.1kcal/molGSVerevkin, 1999Based on data from 288. to 318. K.; AC

Enthalpy of vaporization

ΔvapH (kcal/mol) Temperature (K) Method Reference Comment
15.1 ± 0.07343.GSVerevkin, 1999Based on data from 327. to 358. K.; AC
14.1400.AStephenson and Malanowski, 1987Based on data from 385. to 517. K.; AC
13.8348.N/AStage, Müller, et al., 1953Based on data from 343. to 507. K.; AC
13.3373.N/AStage, Müller, et al., 1953Based on data from 343. to 507. K.; AC
12.6423.N/AStage, Müller, et al., 1953Based on data from 343. to 507. K.; AC
11.6473.N/AStage, Müller, et al., 1953Based on data from 343. to 507. K.; AC

Antoine Equation Parameters

log10(P) = A − (B / (T + C))
    P = vapor pressure (atm)
    T = temperature (K)

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Temperature (K) A B C Reference Comment
343. to 505.85.538182635.051-30.066Stull, 1947Coefficents calculated by NIST from author's data.

Enthalpy of sublimation

ΔsubH (kcal/mol) Temperature (K) Method Reference Comment
19.7 ± 0.1303.GSVerevkin, 1999Based on data from 288. to 318. K.; AC
18.5284.AStephenson and Malanowski, 1987Based on data from 274. to 294. K. See also Aihara, 1960.; 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

p-Cresol + Butylated Hydroxytoluene = 2Phenol, 2-(1,1-dimethylethyl)-4-methyl-

By formula: C7H8O + C15H24O = 2C11H16O

Quantity Value Units Method Reference Comment
Δr-2.3 ± 0.43kcal/molEqkNesterova, Verevkin, et al., 1985liquid phase

p-Cresol + 1-Propene, 2-methyl- = Phenol, 2-(1,1-dimethylethyl)-4-methyl-

By formula: C7H8O + C4H8 = C11H16O

Quantity Value Units Method Reference Comment
Δr15.0 ± 0.67kcal/molEqkVerevkin, Nesterova, et al., 1984gas phase

References

Go To: Top, Gas 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.

Stewart, 2004
Stewart, J.J.P., Comparison of the accuracy of semiempirical and some DFT methods for predicting heats of formation, J. Mol. Model, 2004, 10, 1, 6-10, https://doi.org/10.1007/s00894-003-0157-6 . [all data]

Verevkin, Nesterova, et al., 1984
Verevkin, S.P.; Nesterova, T.N.; Rozhnov, A.M., The equilibrium in the dealkylation of o-t-butyl-p-cresol, Russ. J. Phys. Chem. (Engl. Transl.), 1984, 58, 284. [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]

Witschonke, 1954
Witschonke, C.R., Freezing point and purity data for some organic compounds, Anal. Chem., 1954, 26, 562-4. [all data]

Verevkin, 1999
Verevkin, S.P., Thermochemistry of phenols: quantification of theortho-,para-, andmeta-interactions in tert-alkyl substituted phenols, The Journal of Chemical Thermodynamics, 1999, 31, 5, 559-585, https://doi.org/10.1006/jcht.1998.0459 . [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]

Stage, Müller, et al., 1953
Stage, H.; Müller, E.; Faldix, P., Erdol u Kohle, 1953, 6, 375. [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]

Aihara, 1960
Aihara, Ariyuki, Estimation of the Energy of Hydrogen Bonds Formed in Crystals. II. Phenols, Bull. Chem. Soc. Jpn., 1960, 33, 2, 194-200, https://doi.org/10.1246/bcsj.33.194 . [all data]

Nesterova, Verevkin, et al., 1985
Nesterova, T.N.; Verevkin, S.P.; Malova, T.N.; Pilshchikov, V.A., Study of an equilibrium of tert-alkylphenols (thermodynamic analysis of the alkylation of phenols by branched olefins), Zh. Prikl. Khim. (Leningrad), 1985, 58, 827-833. [all data]


Notes

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