Resorcinol
- Formula: C6H6O2
- Molecular weight: 110.1106
- IUPAC Standard InChIKey: GHMLBKRAJCXXBS-UHFFFAOYSA-N
- CAS Registry Number: 108-46-3
- 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: 1,3-Benzenediol; α-Resorcinol; m-Benzenediol; m-Dihydroxybenzene; m-Dioxybenzene; m-Hydroquinone; m-Hydroxyphenol; Benzene, 1,3-dihydroxy-; C.I. Developer 4; C.I. Oxidation Base 31; C.I. 76505; Developer O; Developer R; Developer RS; Durafur Developer G; Fouramine RS; Fourrine EW; Fourrine 79; Nako TGG; Pelagol Grey RS; Pelagol RS; Resorcin; 1,3-Dihydroxybenzene; 3-Hydroxyphenol; Benzene, m-dihydroxy-; Phenol, m-hydroxy-; NCI-C05970; Rcra waste number U201; Resorcine; UN 2876; NSC 1571; Rodol RS; 1,3-Dihydroxybenzene (resorcinol)
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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.
GT - Glushko Thermocenter, Russian Academy of Sciences, Moscow
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°gas | -284.7 ± 1.2 | kJ/mol | Ccr | Sabbah and Buluku, 1991 | ΔHfusion =15.25±0.52 kJ/mol; ALS |
ΔfH°gas | -275. | kJ/mol | Ccb | Desai, Wilhoit, et al., 1968 | ALS |
ΔfH°gas | -265.2 | kJ/mol | N/A | Pushin, 1954 | Value computed using ΔfHsolid° value of -351.2 kj/mol from Pushin, 1954 and ΔsubH° value of 86.0 kj/mol from Sabbah and Buluku, 1991.; DRB |
Constant pressure heat capacity of gas
Cp,gas (J/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
34.69 | 50. | Kudchadker S.A., 1979 | GT |
47.46 | 100. | ||
65.81 | 150. | ||
85.45 | 200. | ||
114.24 | 273.15 | ||
123.75 | 298.15 | ||
124.44 | 300. | ||
158.69 | 400. | ||
185.86 | 500. | ||
206.73 | 600. | ||
222.95 | 700. | ||
235.90 | 800. | ||
246.52 | 900. | ||
255.42 | 1000. | ||
262.97 | 1100. | ||
269.45 | 1200. | ||
275.04 | 1300. | ||
279.88 | 1400. | ||
284.11 | 1500. |
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 by: John E. Bartmess
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
C6H5O2- + =
By formula: C6H5O2- + H+ = C6H6O2
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1450. ± 8.8 | kJ/mol | G+TS | Fujio, McIver, et al., 1981 | gas phase; value altered from reference due to change in acidity scale |
ΔrH° | 1444. ± 11. | kJ/mol | G+TS | Kebarle and McMahon, 1977 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1422. ± 8.4 | kJ/mol | IMRE | Fujio, McIver, et al., 1981 | gas phase; value altered from reference due to change in acidity scale |
ΔrG° | 1415. ± 8.4 | kJ/mol | IMRE | Kebarle and McMahon, 1977 | gas phase |
Gas phase ion energetics 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
MM - Michael M. Meot-Ner (Mautner)
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
View reactions leading to C6H6O2+ (ion structure unspecified)
Proton affinity at 298K
Proton affinity (kJ/mol) | Reference | Comment |
---|---|---|
856.4 | Bouchoux, Defaye, et al., 2002 | T = 444-504K; MM |
Protonation entropy at 298K
Protonation entropy (J/mol*K) | Reference | Comment |
---|---|---|
-15. | Bouchoux, Defaye, et al., 2002 | T = 444-504K; MM |
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
8.2 | PE | Palmer, Moyes, et al., 1979 | LLK |
8.63 | PE | Palmer, Moyes, et al., 1979 | Vertical value; LLK |
De-protonation reactions
C6H5O2- + =
By formula: C6H5O2- + H+ = C6H6O2
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1450. ± 8.8 | kJ/mol | G+TS | Fujio, McIver, et al., 1981 | gas phase; value altered from reference due to change in acidity scale; B |
ΔrH° | 1444. ± 11. | kJ/mol | G+TS | Kebarle and McMahon, 1977 | gas phase; B |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1422. ± 8.4 | kJ/mol | IMRE | Fujio, McIver, et al., 1981 | gas phase; value altered from reference due to change in acidity scale; B |
ΔrG° | 1415. ± 8.4 | kJ/mol | IMRE | Kebarle and McMahon, 1977 | gas phase; B |
References
Go To: Top, Gas 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.
Sabbah and Buluku, 1991
Sabbah, R.; Buluku, E.N.L.E.,
Thermodynamic study of three isomers of dihydroxybenzene,
Can. J. Chem., 1991, 69, 481-488. [all data]
Desai, Wilhoit, et al., 1968
Desai, P.D.; Wilhoit, R.C.; Zwolinski, B.J.,
Heat of combustion of resorcinol and enthalpies of isomerization of dihydroxybenzenes,
J. Chem. Eng. Data, 1968, 13, 334-335. [all data]
Pushin, 1954
Pushin, N.A.,
Heats of combustion and heats of formation of isomeric organic compounds,
Bull. Soc. Chim. Belgrade, 1954, 19, 531-547. [all data]
Kudchadker S.A., 1979
Kudchadker S.A.,
Ideal gas thermodynamic properties of benzene diols: pyrocatechol, resorcinol, and hydroquinone,
Thermochim. Acta, 1979, 30, 319-326. [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]
Bouchoux, Defaye, et al., 2002
Bouchoux, G.; Defaye, D.; McMahon, T.B.; Likholyot, A.; Mo, O.; Yanez, M.,
Structural and energetic aspects of the protonation of phenol, catechol, resorcinol, and hydroquinone,
Chem. Eur. J., 2002, 8, 2900-2909. [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]
Notes
Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry data, Gas phase ion energetics data, References
- Symbols used in this document:
Cp,gas Constant pressure heat capacity of gas ΔfH°gas Enthalpy of formation of gas at standard conditions ΔrG° Free energy of reaction at standard conditions ΔrH° Enthalpy of reaction at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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