Phenol

Data at NIST subscription sites:

NIST subscription sites provide data under the NIST Standard Reference Data Program, but require an annual fee to access. The purpose of the fee is to recover costs associated with the development of data collections included in such sites. Your institution may already be a subscriber. Follow the links above to find out more about the data in these sites and their terms of usage.

Gas phase thermochemistry data

Go To: Top, Condensed phase thermochemistry data, Reaction thermochemistry data, Gas phase ion energetics data, 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:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DRB - Donald R. Burgess, Jr.
GT - Glushko Thermocenter, Russian Academy of Sciences, Moscow

Quantity Value Units Method Reference Comment
ΔfH°gas-23.03 ± 0.14kcal/molCcbCox, 1961ALS
ΔfH°gas-23.05 ± 0.15kcal/molCcbAndon, Biddiscombe, et al., 1960ALS
ΔfH°gas-22.5kcal/molN/AParks, Manchester, et al., 1954Value computed using ΔfHsolid° value of -162.8±1.0 kj/mol from Parks, Manchester, et al., 1954 and ΔsubH° value of 68.6 kj/mol from Cox, 1961.; DRB
ΔfH°gas-22.8kcal/molN/ABadoche, 1941Value computed using ΔfHsolid° value of -163.9 kj/mol from Badoche, 1941 and ΔsubH° value of 68.6 kj/mol from Cox, 1961.; DRB

Constant pressure heat capacity of gas

Cp,gas (cal/mol*K) Temperature (K) Reference Comment
8.10550.Kudchadker S.A., 1978Recommended S(T) and Cp(T) values are in close agreement with statistical values calculated by [ Evans J.C., 1960, Green J.H.S., 1961]. Entropy value calculated by [ Sarin V.N., 1973] agrees well with the third-law entropy at 298.15 K but not at 400 K. Statistical values calculated by [ Ramaswamy V., 1970] seem to be erroneous.; GT
9.890100.
12.95150.
16.65200.
22.61273.15
24.670298.15
24.823300.
32.455400.
38.697500.
43.614600.
47.524700.
50.703800.
53.344900.
55.5661000.
57.4591100.
59.0821200.
60.4831300.
61.6921400.
62.7441500.

Condensed phase thermochemistry data

Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry data, Gas phase ion energetics data, 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:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DH - Eugene S. Domalski and Elizabeth D. Hearing

Quantity Value Units Method Reference Comment
ΔfH°solid-39.44kcal/molCcbCox, 1961ALS
ΔfH°solid-39.46 ± 0.30kcal/molCcbAndon, Biddiscombe, et al., 1960ALS
ΔfH°solid-38.90 ± 0.25kcal/molCcbParks, Manchester, et al., 1954ALS
ΔfH°solid-39.18kcal/molCcbBadoche, 1941Author's hf298_condensed=-41.49 kcal/mol; ALS
Quantity Value Units Method Reference Comment
ΔcH°solid-731. ± 3.kcal/molAVGN/AAverage of 6 values; Individual data points
Quantity Value Units Method Reference Comment
S°solid,1 bar34.419cal/mol*KN/AAndon, Counsell, et al., 1963DH
S°solid,1 bar34.11cal/mol*KN/AParks, Huffman, et al., 1933Extrapolation below 90 K, 49.04 J/mol*K.; DH

Constant pressure heat capacity of solid

Cp,solid (cal/mol*K) Temperature (K) Reference Comment
30.404298.15Nichols and Wads, 1975DH
47.75313.Rastorguev and Ganiev, 1967T = 313 to 373 K.; DH
30.459298.15Andon, Counsell, et al., 1963T = 13 to 336 K.; DH
22.4293.Campbell and Campbell, 1940DH
24.81229.3Aoyama and Kanda, 1935T = 78 to 229 K. Value is unsmoothed experimental datum.; DH
31.809295.8Parks, Huffman, et al., 1933T = 93 to 296 K. Value is unsmoothed experimental datum.; DH

Reaction thermochemistry data

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Gas phase ion energetics data, 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
M - Michael M. Meot-Ner (Mautner) and Sharon G. Lias
RCD - Robert C. Dunbar
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
MS - José A. Martinho Simões

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

phenoxide anion + Hydrogen cation = Phenol

By formula: C6H5O- + H+ = C6H6O

Quantity Value Units Method Reference Comment
ΔrH°349. ± 2.kcal/molAVGN/AAverage of 6 out of 7 values; Individual data points
Quantity Value Units Method Reference Comment
ΔrG°342.3 ± 2.0kcal/molIMREBartmess, Scott, et al., 1979gas phase; Shiner, Vorner, et al., 1986: tautomer acidities ΔHacid(ortho) = 343.9±3.1 kcal, para = 340.1±2 kcal. However, Capponi, Gut, et al., 1999 based on aq. soln. results, imply 18 and 14 kcal/mol difference.; value altered from reference due to change in acidity scale; B
ΔrG°340.8 ± 1.9kcal/molCIDCAngel and Ervin, 2004gas phase; B
ΔrG°343.4 ± 2.0kcal/molIMRECumming and Kebarle, 1978gas phase; B
ΔrG°>341.5 ± 1.8kcal/molH-TSRichardson, Stephenson, et al., 1975gas phase; B

Chlorine anion + Phenol = (Chlorine anion • Phenol)

By formula: Cl- + C6H6O = (Cl- • C6H6O)

Quantity Value Units Method Reference Comment
ΔrH°26.0 ± 2.0kcal/molTDAsFrench, Ikuta, et al., 1982gas phase; B,M
ΔrH°26.0 ± 2.0kcal/molTDEqCummings, French, et al., 1977gas phase; Re-anchored to data in French, Ikuta, et al., 1982.; B
ΔrH°27.4kcal/molPHPMSKebarle, 1977gas phase; M
ΔrH°26.5kcal/molPHPMSPaul and Kebarle, 1990gas phase; Entropy change calculated or estimated; M
ΔrH°19.4 ± 2.0kcal/molTDAsYamdagni and Kebarle, 1971gas phase; B,M
Quantity Value Units Method Reference Comment
ΔrS°26.0cal/mol*KPHPMSFrench, Ikuta, et al., 1982gas phase; M
ΔrS°25.cal/mol*KPHPMSKebarle, 1977gas phase; M
ΔrS°25.cal/mol*KN/APaul and Kebarle, 1990gas phase; Entropy change calculated or estimated; M
ΔrS°15.5cal/mol*KPHPMSYamdagni and Kebarle, 1971gas phase; M
Quantity Value Units Method Reference Comment
ΔrG°19.2 ± 2.0kcal/molTDAsFrench, Ikuta, et al., 1982gas phase; B
ΔrG°18.5 ± 2.0kcal/molTDEqCummings, French, et al., 1977gas phase; Re-anchored to data in French, Ikuta, et al., 1982.; B
ΔrG°14.8 ± 2.0kcal/molTDAsYamdagni and Kebarle, 1971gas phase; B

Free energy of reaction

ΔrG° (kcal/mol) T (K) Method Reference Comment
15.9423.PHPMSPaul and Kebarle, 1990gas phase; Entropy change calculated or estimated; M

Fluorine anion + Phenol = (Fluorine anion • Phenol)

By formula: F- + C6H6O = (F- • C6H6O)

Quantity Value Units Method Reference Comment
ΔrH°41.3 ± 2.0kcal/molIMRELarson and McMahon, 1983gas phase; These relative affinities are ca. 10 kcal/mol weaker than threshold values (see Wenthold and Squires, 1995) for donors greater than ca. 27 kcal/mol in free energy. This discrepancy has not yet been resolved, though the stronger value appears preferable.; B,M
Quantity Value Units Method Reference Comment
ΔrS°26.3cal/mol*KN/ALarson and McMahon, 1983gas phase; switching reaction(F-)H2O, Entropy change calculated or estimated; Arshadi, Yamdagni, et al., 1970; M
Quantity Value Units Method Reference Comment
ΔrG°33.5 ± 2.0kcal/molIMRELarson and McMahon, 1983gas phase; These relative affinities are ca. 10 kcal/mol weaker than threshold values (see Wenthold and Squires, 1995) for donors greater than ca. 27 kcal/mol in free energy. This discrepancy has not yet been resolved, though the stronger value appears preferable.; B,M

Bromine anion + Phenol = (Bromine anion • Phenol)

By formula: Br- + C6H6O = (Br- • C6H6O)

Quantity Value Units Method Reference Comment
ΔrH°20.8 ± 1.8kcal/molIMREPaul and Kebarle, 1990gas phase; ΔGaff at 423 K; B,M
ΔrH°19.6kcal/molPHPMSPaul and Kebarle, 1991gas phase; Entropy change calculated or estimated; M
Quantity Value Units Method Reference Comment
ΔrS°20.cal/mol*KN/APaul and Kebarle, 1991gas phase; Entropy change calculated or estimated; M
ΔrS°23.cal/mol*KN/APaul and Kebarle, 1990gas phase; Entropy change calculated or estimated; M
Quantity Value Units Method Reference Comment
ΔrG°11.1 ± 1.0kcal/molIMREPaul and Kebarle, 1990gas phase; ΔGaff at 423 K; B

Free energy of reaction

ΔrG° (kcal/mol) T (K) Method Reference Comment
11.1423.PHPMSPaul and Kebarle, 1991gas phase; Entropy change calculated or estimated; M
11.1423.PHPMSPaul and Kebarle, 1990gas phase; Entropy change calculated or estimated; M

Iodide + Phenol = (Iodide • Phenol)

By formula: I- + C6H6O = (I- • C6H6O)

Quantity Value Units Method Reference Comment
ΔrH°17.3 ± 1.8kcal/molIMREPaul and Kebarle, 1990gas phase; ΔGaff at 423 K; B,M
Quantity Value Units Method Reference Comment
ΔrS°21.cal/mol*KN/APaul and Kebarle, 1990gas phase; Entropy change calculated or estimated; M
Quantity Value Units Method Reference Comment
ΔrG°8.4 ± 1.0kcal/molIMREPaul and Kebarle, 1990gas phase; ΔGaff at 423 K; B

Free energy of reaction

ΔrG° (kcal/mol) T (K) Method Reference Comment
8.4423.PHPMSPaul and Kebarle, 1990gas phase; Entropy change calculated or estimated; M

MeCO2 anion + Phenol = (MeCO2 anion • Phenol)

By formula: C2H3O2- + C6H6O = (C2H3O2- • C6H6O)

Quantity Value Units Method Reference Comment
ΔrH°26.1 ± 1.0kcal/molN/AMeot-Ner and Sieck, 1986gas phase; B,M
Quantity Value Units Method Reference Comment
ΔrS°24.0cal/mol*KPHPMSMeot-Ner and Sieck, 1986gas phase; M
Quantity Value Units Method Reference Comment
ΔrG°18.9 ± 1.6kcal/molTDAsMeot-Ner and Sieck, 1986gas phase; B

Sodium ion (1+) + Phenol = (Sodium ion (1+) • Phenol)

By formula: Na+ + C6H6O = (Na+ • C6H6O)

Quantity Value Units Method Reference Comment
ΔrH°24.4 ± 0.8kcal/molCIDTAmunugama and Rodgers, 2002RCD
ΔrH°23.5 ± 0.8kcal/molCIDTArmentrout and Rodgers, 2000RCD

Free energy of reaction

ΔrG° (kcal/mol) T (K) Method Reference Comment
16.7298.IMREMcMahon and Ohanessian, 2000Anchor alanine=39.89; RCD

Phenol + Phenol, 2,4-bis(1-methylethyl)- = Phenol, 2-(1-methylethyl)- + p-Cumenol

By formula: C6H6O + C12H18O = C9H12O + C9H12O

Quantity Value Units Method Reference Comment
ΔrH°-0.2 ± 0.24kcal/molEqkNesterova, Pimerzin, et al., 1989liquid phase; Isomerization; ALS
ΔrH°-0.16 ± 0.24kcal/molEqkNesterova, Pilyshchikov, et al., 1983liquid phase; GC; ALS

C22H20O2Ti (cr) + 2(Hydrogen chloride • 5.55Water) (solution) = 2Phenol (cr) + Titanocene dichloride (cr)

By formula: C22H20O2Ti (cr) + 2(HCl • 5.55H2O) (solution) = 2C6H6O (cr) + C10H10Cl2Ti (cr)

Quantity Value Units Method Reference Comment
ΔrH°-1.4 ± 0.60kcal/molRSCDias, Salema, et al., 1981Please also see Calhorda, Carrondo, et al., 1986.; MS

Phenol (solution) + C5H11BrMg (solution) = C6H5BrMgO (solution) + Pentane (solution)

By formula: C6H6O (solution) + C5H11BrMg (solution) = C6H5BrMgO (solution) + C5H12 (solution)

Quantity Value Units Method Reference Comment
ΔrH°-48.4 ± 1.0kcal/molRSCHolm, 1983solvent: Diethyl ether; MS

C20H32Zr (solution) + Phenol (solution) = C26H36OZr (solution) + Hydrogen (g)

By formula: C20H32Zr (solution) + C6H6O (solution) = C26H36OZr (solution) + H2 (g)

Quantity Value Units Method Reference Comment
ΔrH°-31.69 ± 0.41kcal/molRSCSchock and Marks, 1988solvent: Toluene; MS

C26H36OZr (solution) + Phenol (solution) = C32H40O2Zr (solution) + Hydrogen (g)

By formula: C26H36OZr (solution) + C6H6O (solution) = C32H40O2Zr (solution) + H2 (g)

Quantity Value Units Method Reference Comment
ΔrH°-20.7 ± 0.69kcal/molRSCSchock and Marks, 1988solvent: Toluene; MS

Acetic acid, phenyl ester + Water = Phenol + Acetic acid

By formula: C8H8O2 + H2O = C6H6O + C2H4O2

Quantity Value Units Method Reference Comment
ΔrH°-6.86 ± 0.04kcal/molCmWadso, 1960liquid phase; Heat of hydrolysis; ALS

Phenol + Phenol, 2,5-bis(1-methylpropyl)- = Phenol, 3-(1-methylpropyl)- + Phenol, 2-(1-methylpropyl)-

By formula: C6H6O + C14H22O = C10H14O + C10H14O

Quantity Value Units Method Reference Comment
ΔrH°-0.62 ± 0.26kcal/molEqkNesterova, Pimerzin, et al., 1989liquid phase; Isomerization; ALS

Phenol + C18H30O = Phenol, 2,4-bis(1-methylpropyl)- + Phenol, 2-(1-methylpropyl)-

By formula: C6H6O + C18H30O = C14H22O + C10H14O

Quantity Value Units Method Reference Comment
ΔrH°-0.41 ± 0.36kcal/molEqkNesterova, Pimerzin, et al., 1989liquid phase; Isomerization; ALS

Phenol + Phenol, 2,4-bis(1-methylpropyl)- = Phenol, 2-(1-methylpropyl)- + Phenol, 4-(1-methylpropyl)-

By formula: C6H6O + C14H22O = C10H14O + C10H14O

Quantity Value Units Method Reference Comment
ΔrH°-0.76 ± 0.45kcal/molEqkNesterova, Pimerzin, et al., 1989liquid phase; Isomerization; ALS

Phenol + 3,5-Bis(2-butyl)phenol = 2Phenol, 3-(1-methylpropyl)-

By formula: C6H6O + C14H22O = 2C10H14O

Quantity Value Units Method Reference Comment
ΔrH°-0.31 ± 0.50kcal/molEqkNesterova, Pimerzin, et al., 1989liquid phase; Isomerization; ALS

C6H5NaO (cr) + (Hydrogen chloride • 552Water) (solution) = Phenol (cr) + sodium chloride (cr)

By formula: C6H5NaO (cr) + (HCl • 552H2O) (solution) = C6H6O (cr) + ClNa (cr)

Quantity Value Units Method Reference Comment
ΔrH°-18.6 ± 1.4kcal/molRSCLeal, Pires de Matos, et al., 1991MS

Phenol + Phenol, 3,5-bis(1,1-dimethylethyl)- = Phenol, m-tert-butyl- + Phenol, p-tert-butyl-

By formula: C6H6O + C14H22O = C10H14O + C10H14O

Quantity Value Units Method Reference Comment
ΔrH°0.02 ± 0.17kcal/molEqkPil'shchikov, Nesterova, et al., 1981liquid phase; ALS

Phenol + 2,4-Di-tert-butylphenol = Phenol, 2-(1,1-dimethylethyl)- + Phenol, p-tert-butyl-

By formula: C6H6O + C14H22O = C10H14O + C10H14O

Quantity Value Units Method Reference Comment
ΔrH°-0.0 ± 0.9kcal/molEqkPil'shchikov, Nesterova, et al., 1981liquid phase; ALS

(Lithium ion (1+) • Phenol) + Phenol = (Lithium ion (1+) • 2Phenol)

By formula: (Li+ • C6H6O) + C6H6O = (Li+ • 2C6H6O)

Quantity Value Units Method Reference Comment
ΔrH°27.4 ± 0.8kcal/molCIDTAmunugama and Rodgers, 2002RCD

(Sodium ion (1+) • Phenol) + Phenol = (Sodium ion (1+) • 2Phenol)

By formula: (Na+ • C6H6O) + C6H6O = (Na+ • 2C6H6O)

Quantity Value Units Method Reference Comment
ΔrH°19.5 ± 0.8kcal/molCIDTAmunugama and Rodgers, 2002RCD

(Cesium ion (1+) • Phenol) + Phenol = (Cesium ion (1+) • 2Phenol)

By formula: (Cs+ • C6H6O) + C6H6O = (Cs+ • 2C6H6O)

Quantity Value Units Method Reference Comment
ΔrH°14.5 ± 0.8kcal/molCIDTAmunugama and Rodgers, 2002RCD

(Rubidium ion (1+) • Phenol) + Phenol = (Rubidium ion (1+) • 2Phenol)

By formula: (Rb+ • C6H6O) + C6H6O = (Rb+ • 2C6H6O)

Quantity Value Units Method Reference Comment
ΔrH°15.2 ± 0.8kcal/molCIDTAmunugama and Rodgers, 2002RCD

(Potassium ion (1+) • Phenol) + Phenol = (Potassium ion (1+) • 2Phenol)

By formula: (K+ • C6H6O) + C6H6O = (K+ • 2C6H6O)

Quantity Value Units Method Reference Comment
ΔrH°16.3 ± 0.8kcal/molCIDTAmunugama and Rodgers, 2002RCD

Phenol (cr) + C10H11ClZr (cr) = C16H15ClOZr (cr) + Hydrogen (g)

By formula: C6H6O (cr) + C10H11ClZr (cr) = C16H15ClOZr (cr) + H2 (g)

Quantity Value Units Method Reference Comment
ΔrH°-18.6 ± 1.0kcal/molRSCDiogo, Simoni, et al., 1993MS

Phenol + Phenol, 2,6-bis(1,1-dimethylethyl)- = 2Phenol, 2-(1,1-dimethylethyl)-

By formula: C6H6O + C14H22O = 2C10H14O

Quantity Value Units Method Reference Comment
ΔrH°-3.05 ± 0.13kcal/molEqkPil'shchikov, Nesterova, et al., 1981liquid phase; ALS

Phenol + Phenol, 2,5-bis(1,1-dimethylethyl)- = Phenol, m-tert-butyl- + Phenol, 2-(1,1-dimethylethyl)-

By formula: C6H6O + C14H22O = C10H14O + C10H14O

Quantity Value Units Method Reference Comment
ΔrH°0.0kcal/molEqkPil'shchikov, Nesterova, et al., 1981liquid phase; ALS

C6H5NaO (cr) + Water (l) = Phenol (cr) + Sodium hydroxide (cr)

By formula: C6H5NaO (cr) + H2O (l) = C6H6O (cr) + HNaO (cr)

Quantity Value Units Method Reference Comment
ΔrH°5.11 ± 0.86kcal/molRSCLeal, Pires de Matos, et al., 1991MS

Lithium ion (1+) + Phenol = (Lithium ion (1+) • Phenol)

By formula: Li+ + C6H6O = (Li+ • C6H6O)

Quantity Value Units Method Reference Comment
ΔrH°42.6 ± 4.0kcal/molCIDTAmunugama and Rodgers, 2002RCD

Cesium ion (1+) + Phenol = (Cesium ion (1+) • Phenol)

By formula: Cs+ + C6H6O = (Cs+ • C6H6O)

Quantity Value Units Method Reference Comment
ΔrH°15.7 ± 0.8kcal/molCIDTAmunugama and Rodgers, 2002RCD

Rubidium ion (1+) + Phenol = (Rubidium ion (1+) • Phenol)

By formula: Rb+ + C6H6O = (Rb+ • C6H6O)

Quantity Value Units Method Reference Comment
ΔrH°16.6 ± 0.8kcal/molCIDTAmunugama and Rodgers, 2002RCD

Potassium ion (1+) + Phenol = (Potassium ion (1+) • Phenol)

By formula: K+ + C6H6O = (K+ • C6H6O)

Quantity Value Units Method Reference Comment
ΔrH°17.7 ± 0.8kcal/molCIDTAmunugama and Rodgers, 2002RCD

Phenol, 2-(1-methylpropyl)- = 1-Butene + Phenol

By formula: C10H14O = C4H8 + C6H6O

Quantity Value Units Method Reference Comment
ΔrH°18.6kcal/molCmKukui, Potolovskii, et al., 1973liquid phase; ALS

Phenol, 4-(1-methylpropyl)- = 1-Butene + Phenol

By formula: C10H14O = C4H8 + C6H6O

Quantity Value Units Method Reference Comment
ΔrH°19.8kcal/molCmKukui, Potolovskii, et al., 1973liquid phase; ALS

Phenol, p-tert-butyl- = Phenol + 1-Propene, 2-methyl-

By formula: C10H14O = C6H6O + C4H8

Quantity Value Units Method Reference Comment
ΔrH°17.0 ± 0.50kcal/molEqkVerevkin, 1982gas phase; ALS

Gas phase ion energetics data

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Reaction thermochemistry data, References, Notes

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
L - Sharon G. Lias

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

View reactions leading to C6H6O+ (ion structure unspecified)

Quantity Value Units Method Reference Comment
IE (evaluated)8.49 ± 0.02eVN/AN/AL
Quantity Value Units Method Reference Comment
Proton affinity (review)195.3kcal/molN/AHunter and Lias, 1998HL
Quantity Value Units Method Reference Comment
Gas basicity187.9kcal/molN/AHunter and Lias, 1998HL

Ionization energy determinations

IE (eV) Method Reference Comment
8.508 ± 0.001PILipert and Colson, 1990LL
8.506 ± 0.001PIFuke, Yoshiuchi, et al., 1984LBLHLM
8.49PEFuke, Yoshiuchi, et al., 1984LBLHLM
8. ± 0.PIPECOFraser-Monteiro, Fraser-Monteiro, et al., 1984LBLHLM
~8.21PEKlasinc, Kovac, et al., 1983LBLHLM
8.55PEBehan, Johnstone, et al., 1976LLK
8.47 ± 0.02PEMaier and Turner, 1973LLK
9.1 ± 0.1EIHenion and Kingston, 1973LLK
8.37PEDebies and Rabalais, 1973LLK
8.50EICooks, Bertrand, et al., 1973LLK
8.69EIJohnstone, Mellon, et al., 1971LLK
8.48 ± 0.05PEEland, 1969RDSH
8.52PEDewar and Worley, 1969RDSH
8.50 ± 0.01PIWatanabe, 1957RDSH
8.52 ± 0.02PIVilesov and Terenin, 1957RDSH
8.75PEBallard, Jones, et al., 1987Vertical value; LBLHLM
8.61PEKlasinc, Kovac, et al., 1983Vertical value; LBLHLM
8.70PEKimura, Katsumata, et al., 1981Vertical value; LLK
8.56PEPalmer, Moyes, et al., 1979Vertical value; LLK
8.69PEKobayashi, 1978Vertical value; LLK
8.73PEKobayashi and Nagakura, 1974Vertical value; LLK
8.67PEDewar, Ernstbrunner, et al., 1974Vertical value; LLK
8.56PEDebies and Rabalais, 1973Vertical value; LLK

Appearance energy determinations

Ion AE (eV) Other Products MethodReferenceComment
C5H5+12.96 ± 0.10CO+HDERFraser-Monteiro, Fraser-Monteiro, et al., 1984LBLHLM
C5H5+14.2 ± 0.2CO+HEITajima and Tsuchiya, 1973LLK
C5H5+14.25CO+HEIOccolowitz and White, 1968RDSH
C5H6+11.4 ± 0.1COTRPILifshitz and Malinovich, 1984LBLHLM
C5H6+12.5 ± 0.1COEIHenion and Kingston, 1973LLK
C5H6+11.67COEIHowe and Williams, 1969RDSH
C5H6+[c-C5H6]11.59 ± 0.10COPIPECOFraser-Monteiro, Fraser-Monteiro, et al., 1984T = 0K; LBLHLM

De-protonation reactions

phenoxide anion + Hydrogen cation = Phenol

By formula: C6H5O- + H+ = C6H6O

Quantity Value Units Method Reference Comment
ΔrH°349. ± 2.kcal/molAVGN/AAverage of 6 out of 7 values; Individual data points
Quantity Value Units Method Reference Comment
ΔrG°342.3 ± 2.0kcal/molIMREBartmess, Scott, et al., 1979gas phase; Shiner, Vorner, et al., 1986: tautomer acidities ΔHacid(ortho) = 343.9±3.1 kcal, para = 340.1±2 kcal. However, Capponi, Gut, et al., 1999 based on aq. soln. results, imply 18 and 14 kcal/mol difference.; value altered from reference due to change in acidity scale; B
ΔrG°340.8 ± 1.9kcal/molCIDCAngel and Ervin, 2004gas phase; B
ΔrG°343.4 ± 2.0kcal/molIMRECumming and Kebarle, 1978gas phase; B
ΔrG°>341.5 ± 1.8kcal/molH-TSRichardson, Stephenson, et al., 1975gas phase; B

References

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Reaction thermochemistry data, Gas phase ion energetics 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]

Parks, Manchester, et al., 1954
Parks, G.S.; Manchester, K.E.; Vaughan, L.M., Heats of combustion and formation of some alcohols, phenols, and ketones, J. Chem. Phys., 1954, 22, 2089-2090. [all data]

Badoche, 1941
Badoche, M., No 19. - Chaleurs de combustion du phenol, du-m-cresol et del leurs ethers; par M. Marius BADOCHE., Bull. Soc. Chim. Fr., 1941, 8, 212-220. [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]

Evans J.C., 1960
Evans J.C., The vibrational spectra phenol and phenol-OD, Spectrochim. Acta, 1960, 16, 1382-1392. [all data]

Green J.H.S., 1961
Green J.H.S., The thermodynamic properties of organic oxygen compounds. II. Vibrational assignment and calculated thermodynamic properties of phenol, J. Chem. Soc., 1961, 2236-2241. [all data]

Sarin V.N., 1973
Sarin V.N., Thermodynamic properties in the gaseous state of certain monosubstituted benzenes, Thermochim. Acta, 1973, 6, 39-46. [all data]

Ramaswamy V., 1970
Ramaswamy V., Thermo data for n-alkyl phenols, Hydrocarbon Process., 1970, 49, 217-218. [all data]

Andon, Counsell, et al., 1963
Andon, R.J.L.; Counsell, J.F.; Herington, E.F.G.; Martin, J.F., Thermodynamic properties of organic oxygen compounds, Trans. Faraday Soc., 1963, 59, 830-835. [all data]

Parks, Huffman, et al., 1933
Parks, G.S.; Huffman, H.M.; Barmore, M., Thermal data on organic compounds. XI. The heat capacities, entropies and free energies of ten compounds containing oxygen or nitrogen. J. Am. Chem. Soc., 1933, 55, 2733-2740. [all data]

Nichols and Wads, 1975
Nichols, N.; Wads, I., Thermochemistry of solutions of biochemical model compounds. 3. Some benzene derivatives in aqueous solution, J. Chem. Thermodynam., 1975, 7, 329-336. [all data]

Rastorguev and Ganiev, 1967
Rastorguev, Yu.L.; Ganiev, Yu.A., Study of the heat capacity of selected solvents, Izv. Vyssh. Uchebn. Zaved. Neft Gaz. 10, 1967, No.1, 79-82. [all data]

Campbell and Campbell, 1940
Campbell, A.N.; Campbell, A.J.R., The heats of solution, heats of formation, specific heats and equilibrium diagrams of certain molecular compounds. J. Am. Chem. Soc., 1940, 62, 291-297. [all data]

Aoyama and Kanda, 1935
Aoyama, S.; Kanda, E., Studies on the heat capacities at low temperature. Report I. Heat capacities of some organic substances at low temperature, Sci. Rept. Tohoku Imp. Univ. [1]24, 1935, 107-115. [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]

Shiner, Vorner, et al., 1986
Shiner, C.S.; Vorner, P.E.; Kass, S.R., Gas phase acidities and heats of formation of 2,4- and 2,5- cyclohexadien-1-one, the keto tautomers of phenol, J. Am. Chem. Soc., 1986, 108, 5699. [all data]

Capponi, Gut, et al., 1999
Capponi, M.; Gut, I.G.; Hellrung, B.; Persy, G.; Wirz, J., Ketonization equilibria of phenol in aqueous solution, Can. J. Chem., 1999, 77, 5-6, 605-613, https://doi.org/10.1139/v99-048 . [all data]

Angel and Ervin, 2004
Angel, L.A.; Ervin, K.M., Competitive threshold collision-induced dissociation: Gas-phase acidity and O-H bond dissociation enthalpy of phenol, J. Phys. Chem. A, 2004, 108, 40, 8346-8352, https://doi.org/10.1021/jp0474529 . [all data]

Cumming and Kebarle, 1978
Cumming, J.B.; Kebarle, P., Summary of gas phase measurements involving acids AH. Entropy changes in proton transfer reactions involving negative ions. Bond dissociation energies D(A-H) and electron affinities EA(A), Can. J. Chem., 1978, 56, 1. [all data]

Richardson, Stephenson, et al., 1975
Richardson, J.H.; Stephenson, L.M.; Brauman, J.I., Photodetachment of electrons from phenoxides and thiophenoxide, J. Am. Chem. Soc., 1975, 97, 2967. [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]

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]

Kebarle, 1977
Kebarle, P., Ion Thermochemistry and Solvation from Gas Phase Ion Equilibria, Ann. Rev. Phys. Chem., 1977, 28, 1, 445, https://doi.org/10.1146/annurev.pc.28.100177.002305 . [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]

Yamdagni and Kebarle, 1971
Yamdagni, R.; Kebarle, P., Hydrogen bonding energies to negative ions from gas phase measurements of ionic equilibria, J. Am. Chem. Soc., 1971, 93, 7139. [all data]

Larson and McMahon, 1983
Larson, J.W.; McMahon, T.B., Strong hydrogen bonding in gas-phase anions. An ion cyclotron resonance determination of fluoride binding energetics to bronsted acids from gas-phase fluoride exchange equilibria measurements, J. Am. Chem. Soc., 1983, 105, 2944. [all data]

Wenthold and Squires, 1995
Wenthold, P.G.; Squires, R.R., Bond dissociation energies of F2(-) and HF2(-). A gas-phase experimental and G2 theoretical study, J. Phys. Chem., 1995, 99, 7, 2002, https://doi.org/10.1021/j100007a034 . [all data]

Arshadi, Yamdagni, et al., 1970
Arshadi, M.; Yamdagni, R.; Kebarle, P., Hydration of Halide Negative Ions in the Gas Phase. II. Comparison of Hydration Energies for the Alkali Positive and Halide Negative Ions, J. Phys. Chem., 1970, 74, 7, 1475, https://doi.org/10.1021/j100702a014 . [all data]

Paul and Kebarle, 1991
Paul, G.J.C.; Kebarle, P., Stabilities of Complexes of Br- with Substituted Benzenes (SB) Based on Determinations of the Gas-Phase Equilibria Br- + SB = (BrSB)-, J. Am. Chem. Soc., 1991, 113, 4, 1148, https://doi.org/10.1021/ja00004a014 . [all data]

Meot-Ner and Sieck, 1986
Meot-Ner, M.; Sieck, L.W., The ionic hydrogen bond and ion solvation. 5. OH...O- bonds. Gas phase solvation and clustering of alkoxide and carboxylate anions, J. Am. Chem. Soc., 1986, 108, 7525. [all data]

Amunugama and Rodgers, 2002
Amunugama, R.; Rodgers, M.T., The influence of substituents on cation-pi interactions. 4. Absolute binding energies of alkali metal cation - Phenol complexes determined by threshold collision-induced dissociation and theoretical studies, J. Phys. Chem. A, 2002, 106, 42, 9718, https://doi.org/10.1021/jp0211584 . [all data]

Armentrout and Rodgers, 2000
Armentrout, P.B.; Rodgers, M.T., An Absolute Sodium Cation Affinity Scale: Threshold Collision-Induced Dissociation Experiments and ab Initio Theory, J. Phys. Chem A, 2000, 104, 11, 2238, https://doi.org/10.1021/jp991716n . [all data]

McMahon and Ohanessian, 2000
McMahon, T.B.; Ohanessian, G., An Experimental and Ab Initio Study of the Nature of the Binding in Gas-Phase Complexes of Sodium Ions, Chem. Eur. J., 2000, 6, 16, 2931, https://doi.org/10.1002/1521-3765(20000818)6:16<2931::AID-CHEM2931>3.0.CO;2-7 . [all data]

Nesterova, Pimerzin, et al., 1989
Nesterova, T.N.; Pimerzin, A.A.; Rozhnov, A.M.; Karlina, T.N., Equilibria for the isomerization of (secondary-alkyl)phenols and cyclohexylphenols, J. Chem. Thermodyn., 1989, 21, 385-395. [all data]

Nesterova, Pilyshchikov, et al., 1983
Nesterova, T.N.; Pilyshchikov, V.A.; Rozhnov, A.M., Chemical Equilibrium in the system isopropylphenols-phenol, J. Appl. Chem. USSR, 1983, 56, 1257-1261. [all data]

Dias, Salema, et al., 1981
Dias, A.R.; Salema, M.S.; Martinho Simões, J.A., J. Organometal. Chem., 1981, 222, 69. [all data]

Calhorda, Carrondo, et al., 1986
Calhorda, M.J.; Carrondo, M.A.A.F.C.T.; Dias, A.R.; Domingos, A.M.T.S.; Martinho Simões, J.A.; Teixeira, C., Organometallics, 1986, 5, 660. [all data]

Holm, 1983
Holm, T., Acta Chem. Scand. B, 1983, 37, 797. [all data]

Schock and Marks, 1988
Schock, L.E.; Marks, T.J., J. Am. Chem. Soc., 1988, 110, 7701. [all data]

Wadso, 1960
Wadso, I., Heats of hydrolysis of phenyl acetate and phenyl thiolacetate, Acta Chem. Scand., 1960, 14, 561-565. [all data]

Leal, Pires de Matos, et al., 1991
Leal, J.P.; Pires de Matos, A.; Martinho Simões, J.A., J. Organometal. Chem., 1991, 403, 1. [all data]

Pil'shchikov, Nesterova, et al., 1981
Pil'shchikov, V.A.; Nesterova, T.N.; Rozhnov, A.M., Equilibrium in the system phenol-tert-butylphenols, J. Appl. Chem. USSR, 1981, 54, 1765-1769. [all data]

Diogo, Simoni, et al., 1993
Diogo, H.P.; Simoni, J.A.; Minas da Piedade, M.E.; Dias, A.R.; Martinho Simões, J.A., J. Am. Chem. Soc., 1993, 115, 2764. [all data]

Kukui, Potolovskii, et al., 1973
Kukui, N.M.; Potolovskii, L.A.; Vasileva, V.N., Thermochemical and thermodynamic calculation of the alkylation of phenol by normal α-olefins, Khim. Tekhnol. Topl. Masel, 1973, 18, 10-13. [all data]

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

Lipert and Colson, 1990
Lipert, R.J.; Colson, S.D., Accurate ionization potentials of phenol and phenol-(H2O) from the electric field dependence of the pump-probe photoionization threshold, J. Chem. Phys., 1990, 92, 3240. [all data]

Fuke, Yoshiuchi, et al., 1984
Fuke, K.; Yoshiuchi, H.; Kaya, K.; Achiba, Y.; Sato, K.; Kimura, K., Multiphoton ionization photoelectron spectroscopy and two-color multiphoton ionization threshold spectroscopy on the hydrogen bonded phenol and 7-azaindole in a supersonic jet, Chem. Phys. Lett., 1984, 108, 179. [all data]

Fraser-Monteiro, Fraser-Monteiro, et al., 1984
Fraser-Monteiro, M.L.; Fraser-Monteiro, L.; de Wit, J.; Baer, T., Dissociation dynamics of energy-selected phenol ions, J. Phys. Chem., 1984, 88, 3622. [all data]

Klasinc, Kovac, et al., 1983
Klasinc, L.; Kovac, B.; Gusten, H., Photoelectron spectra of acenes. Electronic structure and substituent effects, Pure Appl. Chem., 1983, 55, 289. [all data]

Behan, Johnstone, et al., 1976
Behan, J.M.; Johnstone, R.A.W.; Bentley, T.W., An evaluation of empirical methods for calculating the ionization potentials of substituted benzenes, Org. Mass Spectrom., 1976, 11, 207. [all data]

Maier and Turner, 1973
Maier, J.P.; Turner, D.W., Steric inhibition of resonance studied by molecular photoelectron spectroscopy Part 3. Anilines, Phenols and Related Compounds, J. Chem. Soc. Faraday Trans. 2, 1973, 69, 521. [all data]

Henion and Kingston, 1973
Henion, J.D.; Kingston, D.G.I., Mass spectrometry of organic compounds. VII. Energetics of substituent isomerization in diphenyl sulfide and diphenyl ether, J. Am. Chem. Soc., 1973, 95, 8358. [all data]

Debies and Rabalais, 1973
Debies, T.P.; Rabalais, J.W., Photoelectron spectra of substituted benzenes. II. Seven valence electron substituents, J. Electron Spectrosc. Relat. Phenom., 1973, 1, 355. [all data]

Cooks, Bertrand, et al., 1973
Cooks, R.G.; Bertrand, M.; Beynon, J.H.; Rennekamp, M.E.; Setser, D.W., Energy partitioning data as an ion structure probe. Substituted anisoles, J. Am. Chem. Soc., 1973, 95, 1732. [all data]

Johnstone, Mellon, et al., 1971
Johnstone, R.A.W.; Mellon, F.A.; Ward, S.D., On-line computer methods used in conjunction with the measurement of ionization appearance potentials, Adv. Mass Spectrom., 1971, 5, 334. [all data]

Eland, 1969
Eland, J.H.D., Photoelectron spectra of conjugated hydrocarbons and heteromolecules, Intern. J. Mass Spectrom. Ion Phys., 1969, 2, 471. [all data]

Dewar and Worley, 1969
Dewar, M.J.S.; Worley, S.D., Photoelectron spectra of molecules. I. Ionization potentials of some organic molecules and their interpretation, J. Chem. Phys., 1969, 50, 654. [all data]

Watanabe, 1957
Watanabe, K., Ionization potentials of some molecules, J. Chem. Phys., 1957, 26, 542. [all data]

Vilesov and Terenin, 1957
Vilesov, F.I.; Terenin, A.N., The photoionization of the vapors of certain organic compounds, Dokl. Akad. Nauk SSSR, 1957, 115, 744, In original 539. [all data]

Ballard, Jones, et al., 1987
Ballard, R.E.; Jones, J.; Read, D.; Inchley, A.; Cranmer, M., He(I) photoelectron studies of liquids and gases, Chem. Phys. Lett., 1987, 137, 125. [all data]

Kimura, Katsumata, et al., 1981
Kimura, K.; Katsumata, S.; Achiba, Y.; Yamazaki, T.; Iwata, S., Ionization energies, Ab initio assignments, and valence electronic structure for 200 molecules in Handbook of HeI Photoelectron Spectra of Fundamental Organic Compounds, Japan Scientific Soc. Press, Tokyo, 1981. [all data]

Palmer, Moyes, et al., 1979
Palmer, M.H.; Moyes, W.; Speirs, M.; Ridyard, J.N.A., The electronic structure of substituted benzenes; ab initio calculations and photoelectron spectra for phenol, the methyl- and fluoro-derivatives, and the dihydroxybenzenes, J. Mol. Struct., 1979, 52, 293. [all data]

Kobayashi, 1978
Kobayashi, T., A simple general tendency in photoelectron angular distributions of some monosubstituted benzenes, Phys. Lett., 1978, 69, 105. [all data]

Kobayashi and Nagakura, 1974
Kobayashi, T.; Nagakura, S., Photoelectron spectra of substituted benzenes, Bull. Chem. Soc. Jpn., 1974, 47, 2563. [all data]

Dewar, Ernstbrunner, et al., 1974
Dewar, P.S.; Ernstbrunner, E.; Gilmore, J.R.; Godfrey, M.; Mellor, J.M., Conformational analysis of alkyl aryl ethers and alkyl aryl sulphides by photoelectron spectroscopy, Tetrahedron, 1974, 30, 2455. [all data]

Tajima and Tsuchiya, 1973
Tajima, S.; Tsuchiya, T., Energetics consideration of C5H5+ ions produced from various precursors by electron impact, Bull. Chem. Soc. Jpn., 1973, 46, 3291. [all data]

Occolowitz and White, 1968
Occolowitz, J.L.; White, G.L., Energetic considerations in the assignment of some fragment ion structures, Australian J. Chem., 1968, 21, 997. [all data]

Lifshitz and Malinovich, 1984
Lifshitz, C.; Malinovich, Y., Time resolved photoionization mass spectrometry in the millisecond range, Int. J. Mass Spectrom. Ion Processes, 1984, 60, 99. [all data]

Howe and Williams, 1969
Howe, I.; Williams, D.H., Calculation and qualitative predictions of mass spectra. Mono- and paradisubstituted benzenes, J. Am. Chem. Soc., 1969, 91, 7137. [all data]

Notes

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Reaction thermochemistry data, Gas phase ion energetics data, References