4-Pyridinol
- Formula: C5H5NO
- Molecular weight: 95.0993
- IUPAC Standard InChIKey: GCNTZFIIOFTKIY-UHFFFAOYSA-N
- CAS Registry Number: 626-64-2
- 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: 4-Pyridone; 4-Pyridol; 4-Hydroxypyridine; γ-Hydroxypyridine; pyridin-4-ol
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Gas phase thermochemistry data
Go To: Top, Condensed phase thermochemistry data, Phase change data, Mass spectrum (electron ionization), 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 by: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°gas | -30.3 ± 5.3 | kJ/mol | Ccb | Ribeiro da Silva, Matos, et al., 1992 | |
ΔfH°gas | -40.8 ± 2.1 | kJ/mol | Ccb | Suradi, El Saiad, et al., 1982 |
Condensed 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 by: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°solid | -148.9 ± 0.8 | kJ/mol | Ccb | Ribeiro da Silva, Matos, et al., 1992 | |
ΔfH°solid | -144.6 ± 1.3 | kJ/mol | Ccb | Suradi, El Saiad, et al., 1982 | |
Quantity | Value | Units | Method | Reference | Comment |
ΔcH°solid | -2533.2 ± 0.4 | kJ/mol | Ccb | Ribeiro da Silva, Matos, et al., 1992 | |
ΔcH°solid | -2537.5 ± 1.1 | kJ/mol | Ccb | Suradi, El Saiad, et al., 1982 |
Phase change 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:
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
AC - William E. Acree, Jr., James S. Chickos
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tfus | 421.15 | K | N/A | Leis and Curran, 1945 | Uncertainty assigned by TRC = 1. K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ΔsubH° | 118.6 ± 5.2 | kJ/mol | C | Ribeiro da Silva, Matos, et al., 1992 | ALS |
ΔsubH° | 118.6 ± 5.2 | kJ/mol | C | Ribeiro da Silva, Matos, et al., 1992 | AC |
ΔsubH° | 103.8 ± 1.7 | kJ/mol | C | Suradi, El Saiad, et al., 1982 | ALS |
ΔsubH° | 103.8 ± 1.7 | kJ/mol | C | Suradi, El Saiad, et al., 1982 | See also Pedley, Naylor, et al., 1986.; AC |
Mass spectrum (electron ionization)
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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: NIST Mass Spectrometry Data Center, William E. Wallace, director
Spectrum
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Additional Data
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Owner | NIST Mass Spectrometry Data Center Collection (C) 2014 copyright by the U.S. Secretary of Commerce on behalf of the United States of America. All rights reserved. |
---|---|
Origin | Insect Chem. Ecol. Lab., USDA, Beltsville, MD 20705 |
NIST MS number | 132292 |
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.
Spectrum
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Additional Data
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Source | Bliznyukov and Reznikov, 1955 |
---|---|
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. 12132 |
Instrument | n.i.g. |
Melting point | 149.8 |
Boiling point | > 350; 257/ 10 mm |
References
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Mass spectrum (electron ionization), UV/Visible spectrum, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Ribeiro da Silva, Matos, et al., 1992
Ribeiro da Silva, M.A.V.; Matos, M.A.R.; Meng-Yan, Y.; Pilcher, G.,
Enthalpy of formation of 4-hydroxypridine,
J. Chem. Thermodyn., 1992, 24, 107-108. [all data]
Suradi, El Saiad, et al., 1982
Suradi, S.; El Saiad, N.; Pilcher, G.; Skinner, H.A.,
Enthalpies of combustion of the three hydroxy-pyridines and the four hydroxy-2-methylpyridines,
J. Chem. Thermodyn., 1982, 14, 45-50. [all data]
Leis and Curran, 1945
Leis, D.G.; Curran, B.C.,
Electric moments of some gamma-substituted pyridines,
J. Am. Chem. Soc., 1945, 67, 79. [all data]
Pedley, Naylor, et al., 1986
Pedley, J.B.; Naylor, R.D.; Kirby, S.P.,
Thermochemical Data of Organic Compounds, 1986, https://doi.org/10.1007/978-94-009-4099-4
. [all data]
Bliznyukov and Reznikov, 1955
Bliznyukov, V.I.; Reznikov, V.M.,
Zhur. Obshchei Khim. (in Rus.), 1955, 25, 1781. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Mass spectrum (electron ionization), UV/Visible spectrum, References
- Symbols used in this document:
Tfus Fusion (melting) point ΔcH°solid Enthalpy of combustion of solid at standard conditions ΔfH°gas Enthalpy of formation of gas at standard conditions ΔfH°solid Enthalpy of formation of solid at standard conditions ΔsubH° Enthalpy of sublimation at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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