4-Pyridinol
- Formula: C5H5NO
- Molecular weight: 95.0993
- IUPAC Standard InChI: InChI=1S/C5H5NO/c7-5-1-3-6-4-2-5/h1-4H,(H,6,7)
- 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
View 3d structure (requires JavaScript / HTML 5) - Other names: 4-Pyridone; 4-Pyridol; 4-Hydroxypyridine; γ-Hydroxypyridine; pyridin-4-ol
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Gas phase ion energetics data
Go To: Top, 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:
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron
Ionization energy determinations
| IE (eV) | Method | Reference | Comment |
|---|---|---|---|
| 9.8 ± 0.03 | PE | Cook, El-Abbady, et al., 1977 | LLK |
| 9.6 ± 0.1 | EI | Stefanovic and Grutzmacher, 1974 | LLK |
| 9.89 ± 0.02 | EI | Gronneberg and Undheim, 1972 | LLK |
| 9.70 ± 0.05 | EI | Basila and Clancy, 1963 | RDSH |
UV/Visible spectrum
Go To: Top, 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.
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 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.
Cook, El-Abbady, et al., 1977
Cook, M.J.; El-Abbady, S.; Katritzky, A.R.; Guimon, C.; Pfister-Guillouzo, G.,
Photoelectron spectra of hydroxy- and mercapto-pyridines and models of fixed structure,
J. Chem. Soc. Perkin Trans. 2, 1977, 1652. [all data]
Stefanovic and Grutzmacher, 1974
Stefanovic, D.; Grutzmacher, H.F.,
The ionisation potential of some substituted pyridines,
Org. Mass Spectrom., 1974, 9, 1052. [all data]
Gronneberg and Undheim, 1972
Gronneberg, T.; Undheim, K.,
Mass spectrometry of onium compounds. XI: ionization potentials of hydroxy and mercapto pyridines,
Org. Mass Spectrom., 1972, 6, 823. [all data]
Basila and Clancy, 1963
Basila, M.R.; Clancy, D.J.,
The ionization potentials of monosubstituted pyridines by electron impact,
J. Phys. Chem., 1963, 67, 1551. [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 ion energetics data, UV/Visible spectrum, References
- Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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