Acetophenone, 4'-hydroxy-
- Formula: C8H8O2
- Molecular weight: 136.1479
- IUPAC Standard InChIKey: TXFPEBPIARQUIG-UHFFFAOYSA-N
- CAS Registry Number: 99-93-4
- 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: Ethanone, 1-(4-hydroxyphenyl)-; p-Hydroxyacetophenone; p-Hydroxyphenyl methyl ketone; p-Oxyacetophenone; Methyl p-hydroxyphenyl ketone; Phenol, p-acetyl-; Piceol; 1-(4-Hydroxyphenyl)ethanone; 4'-Hydroxyacetophenone; para-Hydroxyacetophenone; 4-Hydroxyacetophenone; Acetophenone, p-hydroxy-; Hydroxyacetophenone, para; USAF KF-15; p-Acetylphenol; 4-Acetylphenol; 4-Hydroksyacetofenol; NSC 3698
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Phase change data
Go To: Top, Reaction thermochemistry data, Gas phase ion energetics data, IR Spectrum, Mass spectrum (electron ionization), Gas Chromatography, 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:
BS - Robert L. Brown and Stephen E. Stein
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
AC - William E. Acree, Jr., James S. Chickos
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tfus | 311. | K | N/A | Dauben and Collette, 1959 | Uncertainty assigned by TRC = 3. K; TRC |
Tfus | 383. | K | N/A | Simons, Randall, et al., 1939 | Uncertainty assigned by TRC = 2. K; TRC |
Tfus | 379.65 | K | N/A | Coulthard, Marshall, et al., 1930 | Uncertainty assigned by TRC = 2. K; TRC |
Reduced pressure boiling point
Tboil (K) | Pressure (atm) | Reference | Comment |
---|---|---|---|
420.7 | 0.004 | Weast and Grasselli, 1989 | BS |
Enthalpy of sublimation
ΔsubH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
22.9 | 335. | A | Stephenson and Malanowski, 1987 | Based on data from 320. to 349. K. See also Aihara, 1960.; AC |
Enthalpy of fusion
ΔfusH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
4.321 | 382.8 | N/A | Bernardes, Piedade, et al., 2008 | AC |
4.06 | 381.3 | DSC | Chen, Tang, et al., 2005 | AC |
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
C8H7O2- + =
By formula: C8H7O2- + H+ = C8H8O2
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 335.5 ± 2.1 | kcal/mol | G+TS | Fujio, McIver, et al., 1981 | gas phase; value altered from reference due to change in acidity scale |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 328.6 ± 2.0 | kcal/mol | IMRE | Fujio, McIver, et al., 1981 | gas phase; value altered from reference due to change in acidity scale |
By formula: Br- + C8H8O2 = (Br- • C8H8O2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 25.1 ± 1.8 | kcal/mol | IMRE | Paul and Kebarle, 1990 | gas phase; ΔGaff at 423 K |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 15.4 ± 1.0 | kcal/mol | IMRE | Paul and Kebarle, 1990 | gas phase; ΔGaff at 423 K |
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 evaluated as indicated in comments:
HL - Edward P. Hunter and Sharon G. Lias
Data compiled as indicated in comments:
B - John E. Bartmess
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron
View reactions leading to C8H8O2+ (ion structure unspecified)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Proton affinity (review) | 211.2 | kcal/mol | N/A | Hunter and Lias, 1998 | HL |
Quantity | Value | Units | Method | Reference | Comment |
Gas basicity | 203.6 | kcal/mol | N/A | Hunter and Lias, 1998 | HL |
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
8.70 ± 0.03 | EI | Foffani, Pignataro, et al., 1964 | RDSH |
Appearance energy determinations
Ion | AE (eV) | Other Products | Method | Reference | Comment |
---|---|---|---|---|---|
C7H5O2+ | 10.42 | CH3 | EI | Howe and Williams, 1969 | RDSH |
C7H5O2+ | 9.84 | CH3 | EI | Buchs, Rossetti, et al., 1964 | RDSH |
De-protonation reactions
C8H7O2- + =
By formula: C8H7O2- + H+ = C8H8O2
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 335.5 ± 2.1 | kcal/mol | G+TS | Fujio, McIver, et al., 1981 | gas phase; value altered from reference due to change in acidity scale; B |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 328.6 ± 2.0 | kcal/mol | IMRE | Fujio, McIver, et al., 1981 | gas phase; value altered from reference due to change in acidity scale; B |
IR Spectrum
Go To: Top, Phase change data, Reaction thermochemistry data, Gas phase ion energetics data, Mass spectrum (electron ionization), Gas Chromatography, References, Notes
Data compiled by: Coblentz Society, Inc.
- Not specified, most likely a prism, grating, or hybrid spectrometer.; (NO SPECTRUM, ONLY SCANNED IMAGE IS AVAILABLE)
- SOLID (NUJOL MULL); Not specified, most likely a prism, grating, or hybrid spectrometer.; DIGITIZED BY NIST FROM HARD COPY; 4 cm-1 resolution
Data compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director
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
View image of digitized spectrum (can be printed in landscape orientation).
Due to licensing restrictions, this spectrum cannot be downloaded.
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 | Japan AIST/NIMC Database- Spectrum MS-NW-8737 |
NIST MS number | 228045 |
Gas Chromatography
Go To: Top, Phase change data, Reaction thermochemistry data, Gas phase ion energetics data, IR Spectrum, Mass spectrum (electron ionization), 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: NIST Mass Spectrometry Data Center, William E. Wallace, director
Kovats' RI, non-polar column, isothermal
Column type | Active phase | Temperature (C) | I | Reference | Comment |
---|---|---|---|---|---|
Packed | OV-3 | 160. | 1490.7 | Hassani and Meklati, 1992 | N2, Chromosorb G HP; Column length: 5. m |
Van Den Dool and Kratz RI, non-polar column, temperature ramp
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | HP-5MS | 1442. | Lalel, Singh, et al., 2003 | 60. m/0.25 mm/0.25 μm, He, 40. C @ 1. min, 3. K/min, 310. C @ 20. min |
Van Den Dool and Kratz RI, polar column, temperature ramp
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | DB-Wax | 1786. | Shiratsuchi, Shimoda, et al., 1994 | 60. m/0.25 mm/0.25 μm, He, 2. K/min, 230. C @ 60. min; Tstart: 50. C |
Van Den Dool and Kratz RI, polar column, custom temperature program
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | Supelcowax-10 | 1790. | Sing, Smadja, et al., 1992 | 60. m/0.25 mm/0.25 μm, He; Program: 20C(0.5min) => 60C => 4C/min => 250C |
Normal alkane RI, non-polar column, temperature ramp
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | ZB-5 | 1447. | Harrison and Priest, 2009 | 30. m/0.25 mm/0.25 μm, Helium, 40. C @ 1. min, 6. K/min, 280. C @ 9. min |
Normal alkane RI, polar column, custom temperature program
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | BP-20 | 1779. | Pontes, Marques, et al., 2007 | 30. m/0.25 mm/0.25 μm, He; Program: 50C(1min) => 2.5C/min => 100C => 2C/min => 180C => 15C/min => 220C |
Capillary | Carbowax 20M | 1790. | Vinogradov, 2004 | Program: not specified |
References
Go To: Top, Phase change data, Reaction thermochemistry data, Gas phase ion energetics data, IR Spectrum, Mass spectrum (electron ionization), Gas Chromatography, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Dauben and Collette, 1959
Dauben, W.G.; Collette, J.W.,
An Abnormal Reaction of an Organocadmium Reagent: para-Acylation of m-Methoxythenylcadmium Reagent,
J. Am. Chem. Soc., 1959, 81, 967-72. [all data]
Simons, Randall, et al., 1939
Simons, J.H.; Randall, D.I.; Archer, S.,
Hydrogen Fluoride as A Condensing Agent VI. The Acylaction of Aromatic Compounds,
J. Am. Chem. Soc., 1939, 61, 1795. [all data]
Coulthard, Marshall, et al., 1930
Coulthard, C.E.; Marshall, J.; Pyman, F.L.,
The Variation of Phenol Coefficients in a Homologous Series of Phenols,
J. Chem. Soc., 1930, 1930, 280. [all data]
Weast and Grasselli, 1989
CRC Handbook of Data on Organic Compounds, 2nd Editon, Weast,R.C and Grasselli, J.G., ed(s)., CRC Press, Inc., Boca Raton, FL, 1989, 1. [all data]
Stephenson and Malanowski, 1987
Stephenson, Richard M.; Malanowski, Stanislaw,
Handbook of the Thermodynamics of Organic Compounds, 1987, https://doi.org/10.1007/978-94-009-3173-2
. [all data]
Aihara, 1960
Aihara, Ariyuki,
Estimation of the Energy of Hydrogen Bonds Formed in Crystals. II. Phenols,
Bull. Chem. Soc. Jpn., 1960, 33, 2, 194-200, https://doi.org/10.1246/bcsj.33.194
. [all data]
Bernardes, Piedade, et al., 2008
Bernardes, Carlos E.S.; Piedade, M. Fátima M.; Piedade, Manuel E. Minas da,
Polymorphism in 4´-Hydroxyacetophenone: Structure and Energetics,
Crystal Growth & Design, 2008, 8, 7, 2419-2430, https://doi.org/10.1021/cg7012792
. [all data]
Chen, Tang, et al., 2005
Chen, Yan-Ping; Tang, Muoi; Kuo, Ju-Chia,
Solid--liquid equilibria for binary mixtures of N-phenylacetamide with 4-aminoacetophenone, 3-hydroxyacetophenone and 4-hydroxyacetophenone,
Fluid Phase Equilibria, 2005, 232, 1-2, 182-188, https://doi.org/10.1016/j.fluid.2005.03.023
. [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]
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]
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]
Foffani, Pignataro, et al., 1964
Foffani, A.; Pignataro, S.; Cantone, B.; Grasso, F.,
Ionization potentials and substituent effects for aromatic carbonyl compounds,
Z. Physik. Chem. (Frankfurt), 1964, 42, 221. [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]
Buchs, Rossetti, et al., 1964
Buchs, A.; Rossetti, G.P.; Susz, B.P.,
Etude, en fonction de la constante σp de Hammett, du spectre de masse d'acetophenones p-substituees,
Helv. Chim. Acta, 1964, 47, 1563. [all data]
Hassani and Meklati, 1992
Hassani, A.; Meklati, B.Y.,
Gas chromatographic behaviour of monosubstituted benzenes, benzaldehydes and acetophenones on OV polymethylphenyl-silicone stationary phases,
Chromatographia, 1992, 33, 5/6, 267-271, https://doi.org/10.1007/BF02276193
. [all data]
Lalel, Singh, et al., 2003
Lalel, H.J.D.; Singh, Z.; Chye Tan, S.,
Glycosidically-bound aroma volatile compounds in the skin and pulp of 'Kensington Pride' mango fruit at different stages of maturity,
Postharvest Biol. Technol., 2003, 29, 2, 205-218, https://doi.org/10.1016/S0925-5214(02)00250-8
. [all data]
Shiratsuchi, Shimoda, et al., 1994
Shiratsuchi, H.; Shimoda, M.; Imayoshi, K.; Noda, K.; Osajima, Y.,
Volatile flavor compounds in spray-dried skim milk powder,
J. Agric. Food Chem., 1994, 42, 4, 984-988, https://doi.org/10.1021/jf00040a028
. [all data]
Sing, Smadja, et al., 1992
Sing, A.S.C.; Smadja, J.; Brevard, H.; Maignial, L.; Chaintreau, A.; Marion, J.-P.,
Volatile constituents of faham (Jumellea fragrans (Thou.) Schltr.),
J. Agric. Food Chem., 1992, 40, 4, 642-646, https://doi.org/10.1021/jf00016a024
. [all data]
Harrison and Priest, 2009
Harrison, B.M.; Priest, F.G.,
Composition of peaks used in the preparation of malt for Scotch Whisky production - influence of geographical source and extraction depth,
J. Agric. Food Chem., 2009, 57, 6, 2385-2391, https://doi.org/10.1021/jf803556y
. [all data]
Pontes, Marques, et al., 2007
Pontes, M.; Marques, J.C.; Camara, J.S.,
Screening of volatile composition from Portuguese multifloral honeys using headspace solid-phase microextraction-gas chromatography-quadrupole mass spectrometry,
Talanta, 2007, 74, 1, 91-103, https://doi.org/10.1016/j.talanta.2007.05.037
. [all data]
Vinogradov, 2004
Vinogradov, B.A.,
Production, composition, properties and application of essential oils, 2004, retrieved from http://viness.narod.ru. [all data]
Notes
Go To: Top, Phase change data, Reaction thermochemistry data, Gas phase ion energetics data, IR Spectrum, Mass spectrum (electron ionization), Gas Chromatography, References
- Symbols used in this document:
AE Appearance energy Tboil Boiling point Tfus Fusion (melting) point ΔfusH Enthalpy of fusion ΔrG° Free energy of reaction at standard conditions ΔrH° Enthalpy of reaction at standard conditions ΔsubH Enthalpy of sublimation - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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