Phenol, 2-methyl-

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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

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Individual Reactions

Bromine anion + Phenol, 2-methyl- = (Bromine anion • Phenol, 2-methyl-)

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

Quantity Value Units Method Reference Comment
Δr86.2 ± 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
Δr45.6 ± 4.2kJ/molIMREPaul and Kebarle, 1990gas phase; ΔGaff at 423 K; B

Free energy of reaction

ΔrG° (kJ/mol) T (K) Method Reference Comment
45.6423.PHPMSPaul and Kebarle, 1990gas phase; Entropy change calculated or estimated; M

C7H7O- + Hydrogen cation = Phenol, 2-methyl-

By formula: C7H7O- + H+ = C7H8O

Quantity Value Units Method Reference Comment
Δr1462. ± 9.2kJ/molG+TSFujio, McIver, et al., 1981gas phase; value altered from reference due to change in acidity scale; B
Δr1465. ± 12.kJ/molG+TSKebarle and McMahon, 1977gas phase; B
Quantity Value Units Method Reference Comment
Δr1431. ± 8.4kJ/molIMREFujio, McIver, et al., 1981gas phase; value altered from reference due to change in acidity scale; B
Δr1434. ± 8.4kJ/molIMREKebarle and McMahon, 1977gas phase; B

Phenol, 4,6-di(1,1-dimethylethyl)-2-methyl- + Phenol, 2-methyl- = Phenol, 2-(1,1-dimethylethyl)-6-methyl- + Phenol, 4-(1,1-dimethylethyl)-2-methyl-

By formula: C15H24O + C7H8O = C11H16O + C11H16O

Quantity Value Units Method Reference Comment
Δr2.5 ± 3.5kJ/molEqkNesterova, Verevkin, et al., 1985liquid phase; ALS

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.

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]

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]


Notes

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