Benzyl alcohol
- Formula: C7H8O
- Molecular weight: 108.1378
- IUPAC Standard InChIKey: WVDDGKGOMKODPV-UHFFFAOYSA-N
- CAS Registry Number: 100-51-6
- Chemical structure:
This structure is also available as a 2d Mol file or as a computed 3d SD file
The 3d structure may be viewed using Java or Javascript. - Other names: Benzenemethanol; α-Hydroxytoluene; α-Toluenol; (Hydroxymethyl)benzene; Benzenecarbinol; Phenylcarbinol; Phenylmethanol; Phenylmethyl alcohol; Methanol, phenyl-; NCI-C06111; Hydroxytoluene; Bentalol; Benzoyl alcohol; Benzenmethanol; Benzylic alcohol; Methanol benzene; NSC 8044; Benzyl Alkohol
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Reaction thermochemistry data
Go To: Top, 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
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
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Individual Reactions
By formula: C7H7O- + C7H8O = (C7H7O- • C7H8O)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 29.8 ± 2.5 | kcal/mol | N/A | Caldwell, Rozeboom, et al., 1984 | gas phase; Reanchored to average data from Paul and Kebarle, 1990 and Meot-ner and Sieck, 1986.; value altered from reference due to change in acidity scale; B,M |
ΔrH° | 23.8 | kcal/mol | PHPMS | Caldwell and Kebarle, 1986 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 23.2 | cal/mol*K | PHPMS | Caldwell and Kebarle, 1986 | gas phase; M |
ΔrS° | 29.3 | cal/mol*K | N/A | Caldwell, Rozeboom, et al., 1984 | gas phase; switching reaction(CH3O-)CH3OH, Entropy change calculated or estimated; re-evaluated using Meot-Ner(Mautner), 1986 and Paul and Kebarle, 1990; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 20.7 ± 1.6 | kcal/mol | TDAs | Caldwell, Rozeboom, et al., 1984 | gas phase; Reanchored to average data from Paul and Kebarle, 1990 and Meot-ner and Sieck, 1986.; value altered from reference due to change in acidity scale; B,M |
By formula: C8H5- + C7H8O = (C8H5- • C7H8O)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 26.6 ± 2.9 | kcal/mol | N/A | Caldwell, Rozeboom, et al., 1984 | gas phase; Reanchored to average data from Paul and Kebarle, 1990 and Meot-ner and Sieck, 1986.; value altered from reference due to change in acidity scale; B,M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 29.3 | cal/mol*K | N/A | Caldwell, Rozeboom, et al., 1984 | gas phase; switching reaction(CH3O-)CH3OH, Entropy change calculated or estimated; re-evaluated using Meot-Ner(Mautner), 1986 and Paul and Kebarle, 1990; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 17.9 ± 2.0 | kcal/mol | IMRE | Caldwell, Rozeboom, et al., 1984 | gas phase; Reanchored to average data from Paul and Kebarle, 1990 and Meot-ner and Sieck, 1986.; value altered from reference due to change in acidity scale; B,M |
C7H7O- + =
By formula: C7H7O- + H+ = C7H8O
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 370.0 ± 2.1 | kcal/mol | G+TS | Bartmess, Scott, et al., 1979 | gas phase; value altered from reference due to change in acidity scale; B |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 363.4 ± 2.0 | kcal/mol | IMRE | Bartmess, Scott, et al., 1979 | gas phase; value altered from reference due to change in acidity scale; B |
By formula: C5H5- + C7H8O = (C5H5- • C7H8O)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 19.2 ± 1.0 | kcal/mol | TDAs | Meot-ner, 1988 | gas phase; B,M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 29.8 | cal/mol*K | PHPMS | Meot-ner, 1988 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 10.3 ± 1.0 | kcal/mol | TDAs | Meot-ner, 1988 | gas phase; B |
By formula: F- + C7H8O = (F- • C7H8O)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 32.40 | kcal/mol | N/A | Mihalick, Gatev, et al., 1996 | gas phase; affinity derived using a ROH..F. neutral binding energy of 10.3 kcal/mol.; B |
By formula: C7H7I + H2O = HI + C7H8O
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | -3.00 | kcal/mol | Cm | Gellner and Skinner, 1949 | liquid phase; Heat of hydrolysis; ALS |
By formula: C7H7Br + H2O = HBr + C7H8O
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | -1.9 | kcal/mol | Cm | Gellner and Skinner, 1949 | liquid phase; Heat of hydrloysis; ALS |
By formula: C7H8O = C7H6O + H2
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 12.89 | kcal/mol | Eqk | Cubberley and Mueller, 1946 | gas phase; ALS |
References
Go To: Top, Reaction thermochemistry data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Caldwell, Rozeboom, et al., 1984
Caldwell, G.; Rozeboom, M.D.; Kiplinger, J.P.; Bartmess, J.E.,
Anion-alcohol hydrogen bond strengths in the gas phase,
J. Am. Chem. Soc., 1984, 106, 4660. [all data]
Paul and Kebarle, 1990
Paul, G.J.C.; Kebarle, P.,
Thermodynamics of the Association Reactions OH- - H2O = HOHOH- and CH3O- - CH3OH = CH3OHOCH3- in the Gas Phase,
J. Phys. Chem., 1990, 94, 12, 5184, https://doi.org/10.1021/j100375a076
. [all data]
Meot-ner and Sieck, 1986
Meot-ner, M.; Sieck, L.W.,
Relative acidities of water and methanol, and the stabilities of the dimer adducts,
J. Phys. Chem., 1986, 90, 6687. [all data]
Caldwell and Kebarle, 1986
Caldwell, G.; Kebarle, P.,
Mobility of Gaseous Ions in Weak Electric Fields
in Unpublished results, 1986. [all data]
Meot-Ner(Mautner), 1986
Meot-Ner(Mautner), M.,
Comparative Stabilities of Cationic and Anionic Hydrogen-Bonded Networks. Mixed Clusters of Water-Methanol,
J. Am. Chem. Soc., 1986, 108, 20, 6189, https://doi.org/10.1021/ja00280a014
. [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]
Meot-ner, 1988
Meot-ner, M.,
The Ionic Hydrogen Bond and Solvation. 7. Interaction Energies of Carbanions with Solvent Molecules,
J. Am. Chem. Soc., 1988, 110, 12, 3858, https://doi.org/10.1021/ja00220a022
. [all data]
Mihalick, Gatev, et al., 1996
Mihalick, J.E.; Gatev, G.G.; Brauman, J.I.,
Electron Photodetachment Spectroscopy of Solvated Anions: RO.HF- or ROH.F-?,
J. Am. Chem. Soc., 1996, 118, 49, 12424, https://doi.org/10.1021/ja954202k
. [all data]
Gellner and Skinner, 1949
Gellner, O.H.; Skinner, H.A.,
Dissociation energies of carbon-halogen bonds. The bond strengths allyl-X and benzyl-X,
J. Chem. Soc., 1949, 1145-1148. [all data]
Cubberley and Mueller, 1946
Cubberley, A.H.; Mueller, M.B.,
Equilibrium studies on the dehydrogenation of primary and secondary alcohols. I. 2-Butanol, 2-octanol, cyclopentanol and benzyl alcohol,
J. Am. Chem. Soc., 1946, 68, 1149-1151. [all data]
Notes
Go To: Top, Reaction thermochemistry data, References
- Symbols used in this document:
ΔrG° Free energy of reaction at standard conditions ΔrH° Enthalpy of reaction at standard conditions ΔrS° Entropy of reaction at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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