p-Cresol

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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
GT - Glushko Thermocenter, Russian Academy of Sciences, Moscow

Quantity Value Units Method Reference Comment
Δfgas-125.3 ± 1.5kJ/molCcbCox, 1961ALS
Δfgas-125.4 ± 1.5kJ/molCcbAndon, Biddiscombe, et al., 1960ALS

Constant pressure heat capacity of gas

Cp,gas (J/mol*K) Temperature (K) Reference Comment
39.1150.Kudchadker S.A., 1978Selected entropies and heat capacities are in close agreement with statistical values calculated by [ Green J.H.S., 1962] except for S(298.15 K). This value is 3.1 J/mol*K greater than the calculated by [ Green J.H.S., 1962].; GT
51.31100.
68.39150.
86.75200.
115.15273.15
124.97298.15
125.69300.
162.77400.
194.02500.
219.28600.
239.77700.
256.68800.
270.84900.
282.841000.
293.081100.
301.871200.
309.451300.
316.001400.
321.691500.

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 as indicated in comments:
B - John E. Bartmess
M - Michael M. Meot-Ner (Mautner) and Sharon G. Lias
ALS - 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

Chlorine anion + p-Cresol = (Chlorine anion • p-Cresol)

By formula: Cl- + C7H8O = (Cl- • C7H8O)

Quantity Value Units Method Reference Comment
Δr107. ± 8.4kJ/molTDEqCummings, French, et al., 1977gas phase; Re-anchored to data in French, Ikuta, et al., 1982.; B,M
Δr108.kJ/molPHPMSPaul and Kebarle, 1990gas phase; Entropy change calculated or estimated; M
Quantity Value Units Method Reference Comment
Δr100.J/mol*KN/APaul and Kebarle, 1990gas phase; Entropy change calculated or estimated; M
Δr112.J/mol*KPHPMSCummings, French, et al., 1977gas phase; M
Quantity Value Units Method Reference Comment
Δr74.9 ± 8.4kJ/molTDEqCummings, French, et al., 1977gas phase; Re-anchored to data in French, Ikuta, et al., 1982.; B

Free energy of reaction

ΔrG° (kJ/mol) T (K) Method Reference Comment
64.0423.PHPMSPaul and Kebarle, 1990gas phase; Entropy change calculated or estimated; M
69.5300.PHPMSCummings, French, et al., 1977gas phase; M

C7H7O- + Hydrogen cation = p-Cresol

By formula: C7H7O- + H+ = C7H8O

Quantity Value Units Method Reference Comment
Δr1465. ± 8.8kJ/molG+TSFujio, McIver, et al., 1981gas phase; value altered from reference due to change in acidity scale; B
Δr1465. ± 8.8kJ/molG+TSBartmess, Scott, et al., 1979gas phase; value altered from reference due to change in acidity scale; B
Δr1471. ± 9.6kJ/molG+TSKebarle and McMahon, 1977gas phase; B
Quantity Value Units Method Reference Comment
Δr1437. ± 8.4kJ/molIMREFujio, McIver, et al., 1981gas phase; value altered from reference due to change in acidity scale; B
Δr1437. ± 8.4kJ/molIMREBartmess, Scott, et al., 1979gas phase; value altered from reference due to change in acidity scale; B
Δr1442. ± 8.4kJ/molIMREKebarle and McMahon, 1977gas phase; B

Bromine anion + p-Cresol = (Bromine anion • p-Cresol)

By formula: Br- + C7H8O = (Br- • C7H8O)

Quantity Value Units Method Reference Comment
Δr84.9 ± 7.5kJ/molIMREPaul and Kebarle, 1990gas phase; ΔGaff at 423 K; B,M
Quantity Value Units Method Reference Comment
Δr96.J/mol*KN/APaul and Kebarle, 1990gas phase; Entropy change calculated or estimated; M
Quantity Value Units Method Reference Comment
Δr44.4 ± 4.2kJ/molIMREPaul and Kebarle, 1990gas phase; ΔGaff at 423 K; B

Free energy of reaction

ΔrG° (kJ/mol) T (K) Method Reference Comment
44.4423.PHPMSPaul and Kebarle, 1990gas phase; Entropy change calculated or estimated; M

Iodide + p-Cresol = (Iodide • p-Cresol)

By formula: I- + C7H8O = (I- • C7H8O)

Quantity Value Units Method Reference Comment
Δr68.6 ± 7.5kJ/molIMREPaul and Kebarle, 1990gas phase; ΔGaff at 423 K; B,M
Quantity Value Units Method Reference Comment
Δr88.J/mol*KN/APaul and Kebarle, 1990gas phase; Entropy change calculated or estimated; M
Quantity Value Units Method Reference Comment
Δr31. ± 4.2kJ/molIMREPaul and Kebarle, 1990gas phase; ΔGaff at 423 K; B

Free energy of reaction

ΔrG° (kJ/mol) T (K) Method Reference Comment
31.423.PHPMSPaul and Kebarle, 1990gas phase; Entropy change calculated or estimated; M

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

By formula: C7H8O + C15H24O = 2C11H16O

Quantity Value Units Method Reference Comment
Δr-9.7 ± 1.8kJ/molEqkNesterova, Verevkin, et al., 1985liquid phase; ALS

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

By formula: C7H8O + C4H8 = C11H16O

Quantity Value Units Method Reference Comment
Δr62.7 ± 2.8kJ/molEqkVerevkin, Nesterova, et al., 1984gas phase; ALS

Henry's Law 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: Rolf Sander

Henry's Law constant (water solution)

kH(T) = H exp(d(ln(kH))/d(1/T) ((1/T) - 1/(298.15 K)))
H = Henry's law constant for solubility in water at 298.15 K (mol/(kg*bar))
d(ln(kH))/d(1/T) = Temperature dependence constant (K)

H (mol/(kg*bar)) d(ln(kH))/d(1/T) (K) Method Reference Comment
2500. QN/A missing citation give several references for the Henry's law constants but don't assign them to specific species. Value at T = 293. K.
1100. XN/A 
520.4600.XN/A 
1000. XN/AValue given here as quoted by missing citation.
1300.7200.MN/AIt is assumed here that the thermodynamic data in missing citation refers to the units [mol/dm3] and [atm] as standard states.

References

Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry data, Henry's Law data, Notes

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

Cox, 1961
Cox, J.D., The heats of combustion of phenol and the three cresols, Pure Appl. Chem., 1961, 2, 125-128. [all data]

Andon, Biddiscombe, et al., 1960
Andon, R.J.L.; Biddiscombe, D.P.; Cox, J.D.; Handley, R.; Harrop, D.; Herington, E.F.G.; Martin, J.F., Thermodynamic properties of organic oxygen compounds. Part I. Preparation and physical properties of pure phenol, cresols, and xylenols, J. Chem. Soc., 1960, 5246-5254. [all data]

Kudchadker S.A., 1978
Kudchadker S.A., Ideal gas thermodynamic properties of phenol and cresols, J. Phys. Chem. Ref. Data, 1978, 7, 417-423. [all data]

Green J.H.S., 1962
Green J.H.S., Normal frequencies, thermodynamic properties and equilibrium of the cresols, Chem. Ind. (London), 1962, 1575-1576. [all data]

Cummings, French, et al., 1977
Cummings, J.B.; French, M.A.; Kebarle, P., Effect of charge delocalization on hydrogen bonding to negative ions and solvation of negative ions. Substituted phenols and phenoxide ions, J. Am. Chem. Soc., 1977, 99, 6999. [all data]

French, Ikuta, et al., 1982
French, M.A.; Ikuta, S.; Kebarle, P., Hydrogen bonding of O-H and C-H hydrogen donors to Cl-. Results from mass spectrometric measurement of the ion-molecule equilibria RH + Cl- = RHCl-, Can. J. Chem., 1982, 60, 1907. [all data]

Paul and Kebarle, 1990
Paul, G.J.C.; Kebarle, P., Stabilities in the Gas Phase of the Hydrogen Bonded Complexes, YC6H4OH-X-, of Substituted Phenols, YC6H4OH, with the Halide Anions X-(Cl-, Br-), Can. J. Chem., 1990, 68, 11, 2070, https://doi.org/10.1139/v90-316 . [all data]

Fujio, McIver, et al., 1981
Fujio, M.; McIver, R.T., Jr.; Taft, R.W., Effects on the acidities of phenols from specific substituent-solvent interactions. Inherent substituent parameters from gas phase acidities, J. Am. Chem. Soc., 1981, 103, 4017. [all data]

Bartmess, Scott, et al., 1979
Bartmess, J.E.; Scott, J.A.; McIver, R.T., Jr., The gas phase acidity scale from methanol to phenol, J. Am. Chem. Soc., 1979, 101, 6047. [all data]

Kebarle and McMahon, 1977
Kebarle, P.; McMahon, T.B., Intrinsic Acidities of Substituted Phenols and Benzoic Acids Determined by Gas Phase Proton Transfer Equilibria, J. Am. Chem. Soc., 1977, 99, 7, 2222, https://doi.org/10.1021/ja00449a032 . [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]

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]


Notes

Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry data, Henry's Law data, References