Phenol, p-tert-butyl-

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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
DRB - Donald R. Burgess, Jr.

Quantity Value Units Method Reference Comment
Δfgas-44.50kcal/molEqkVerevkin, 1982Isomerization; ALS
Δfgas-51.34kcal/molN/AAmmar, El Sayed, et al., 1977Value computed using ΔfHsolid° value of -310.5±1.2 kj/mol from Ammar, El Sayed, et al., 1977 and ΔsubH° value of 95.7 kj/mol from Bertholon, Giray, et al., 1971.; DRB
Δfgas-41.67kcal/molCcbBertholon, Giray, et al., 1971ALS

Gas phase ion energetics data

Go To: Top, Gas phase thermochemistry data, UV/Visible spectrum, References, Notes

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
LBLHLM - Sharon G. Lias, John E. Bartmess, Joel F. Liebman, John L. Holmes, Rhoda D. Levin, and W. Gary Mallard

Ionization energy determinations

IE (eV) Method Reference Comment
7.8PECetinkaya, Lappert, et al., 1983LBLHLM
8.16PECetinkaya, Lappert, et al., 1983Vertical value; LBLHLM

De-protonation reactions

C10H13O- + Hydrogen cation = Phenol, p-tert-butyl-

By formula: C10H13O- + H+ = C10H14O

Quantity Value Units Method Reference Comment
Δr348.5 ± 2.1kcal/molG+TSFujio, McIver, et al., 1981gas phase; value altered from reference due to change in acidity scale; B
Quantity Value Units Method Reference Comment
Δr341.6 ± 2.0kcal/molIMREFujio, McIver, et al., 1981gas phase; value altered from reference due to change in acidity scale; B

UV/Visible 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: Victor Talrose, Eugeny B. Stern, Antonina A. Goncharova, Natalia A. Messineva, Natalia V. Trusova, Margarita V. Efimkina

Spectrum

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UVVis spectrum
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Additional Data

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Source Coggeshall and Lang, 1948
Owner INEP CP RAS, NIST OSRD
Collection (C) 2007 copyright by the U.S. Secretary of Commerce
on behalf of the United States of America. All rights reserved.
Origin INSTITUTE OF ENERGY PROBLEMS OF CHEMICAL PHYSICS, RAS
Source reference RAS UV No. 569
Instrument Beckman Spectrophotometer
Melting point 98
Boiling point 237

References

Go To: Top, Gas phase thermochemistry data, Gas phase ion energetics data, UV/Visible spectrum, Notes

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

Verevkin, 1982
Verevkin, S.P., Study of equilibrium of tert-butylphenol dealkylation in the gas phase, Termodin. Organ. Soedin., 1982, 67-70. [all data]

Ammar, El Sayed, et al., 1977
Ammar, M.M.; El Sayed, N.; Morsi, S.E.; El Azmirly, A., The enthalpies of combustion and formation of p-tertiary butyl phenol and naphthalene, Egypt. J. Phys., 1977, 8, 111-118. [all data]

Bertholon, Giray, et al., 1971
Bertholon, G.; Giray, M.; Perrin, R.; Vincent-Falquet-Berny, M.F., No. 532. - Etude physicochimique des phenols. OX. - Ethanlpies de combustion et energies de resonance des alcoyl et aryphenols, Bull. Soc. Chim. France, 1971, 3180-3187. [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]

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]

Coggeshall and Lang, 1948
Coggeshall, N.D.; Lang, E.M., Influence of solvent, hydrogen bonding, temperature and conjugation on the ultraviolet spectra of phenols and aromatic hydrocarbons, J. Am. Chem. Soc., 1948, 70, 3283-3292. [all data]


Notes

Go To: Top, Gas phase thermochemistry data, Gas phase ion energetics data, UV/Visible spectrum, References