Benzaldehyde, 4-methoxy-
- Formula: C8H8O2
- Molecular weight: 136.1479
- IUPAC Standard InChIKey: ZRSNZINYAWTAHE-UHFFFAOYSA-N
- CAS Registry Number: 123-11-5
- 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: p-Anisaldehyde; p-Anisic aldehyde; p-Formylanisole; p-Methoxybenzaldehyde; Anisaldehyde; Aubepine; Crategine; Obepin; 4-Anisaldehyde; 4-Methoxybenzaldehyde; Anisic aldehyde; Anisaldehyde (para); para-Anisaldehyde; NSC 5590; Anisal; Methoxybenzaldehyde
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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°liquid | -247. | kJ/mol | Ccb | Zavoianu, Contineanu, et al., 1986 | |
Quantity | Value | Units | Method | Reference | Comment |
ΔcH°liquid | -4047. | kJ/mol | Ccb | Zavoianu, Contineanu, et al., 1986 | Corresponding ΔfHºliquid = -244. kJ/mol (simple calculation by NIST; no Washburn corrections) |
ΔcH°liquid | -4024.2 ± 7.5 | kJ/mol | Ccb | Manzoni-Ansidei and Storto, 1940 | Reanalyzed by Cox and Pilcher, 1970, Original value = -4028.9 kJ/mol; Corresponding ΔfHºliquid = -267.2 kJ/mol (simple calculation by NIST; no Washburn corrections) |
Phase change data
Go To: Top, Condensed phase thermochemistry data, 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.
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 |
---|---|---|---|---|---|
Tboil | 521.2 | K | N/A | Aldrich Chemical Company Inc., 1990 | BS |
Tboil | 521. | K | N/A | American Tokyo Kasei, 1988 | BS |
Tboil | 521.15 | K | N/A | Grimm and Patrick, 1923 | Uncertainty assigned by TRC = 0.5 K; TRC |
Tboil | 520.15 | K | N/A | Atkins, 1915 | Uncertainty assigned by TRC = 3. K; TRC |
Tboil | 521.15 | K | N/A | Perkin, 1896 | Uncertainty assigned by TRC = 2. K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Tfus | 273.12 | K | N/A | Perkin, 1896 | Uncertainty assigned by TRC = 0.4 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ΔvapH° | 60.4 | kJ/mol | A | Stephenson and Malanowski, 1987 | Based on data from 283. to 323. K. See also Serpinskii, Voitkevich, et al., 1955.; AC |
Enthalpy of vaporization
ΔvapH (kJ/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
57.1 | 361. | A | Stephenson and Malanowski, 1987 | Based on data from 346. to 521. K. See also Stull, 1947.; AC |
58.4 | 363. | A,EB | Scholz and Brunner, 1985 | Based on data from 348. to 521. K.; AC |
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:
LBLHLM - Sharon G. Lias, John E. Bartmess, Joel F. Liebman, John L. Holmes, Rhoda D. Levin, and W. Gary Mallard
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
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) | 881.1 | kJ/mol | N/A | Hunter and Lias, 1998 | HL |
Quantity | Value | Units | Method | Reference | Comment |
Gas basicity | 849.3 | kJ/mol | N/A | Hunter and Lias, 1998 | HL |
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
8.43 | PE | Behan, Johnstone, et al., 1976 | LLK |
8.60 ± 0.03 | EI | Foffani, Pignataro, et al., 1964 | RDSH |
8.88 | PE | Gal, Geribaldi, et al., 1985 | Vertical value; LBLHLM |
8.87 | PE | Baker, May, et al., 1968 | Vertical value; RDSH |
References
Go To: Top, Condensed phase thermochemistry data, Phase change 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.
Zavoianu, Contineanu, et al., 1986
Zavoianu, D.; Contineanu, I.; Moga-Gheorghe, S.; Marchidan, D.,
Structure and reactivity of nitriles. Condensation reaction of phenylacetonitrile with benzaldehydes,
Rev. Chim. (Bucharest), 1986, 37, 1055-1058. [all data]
Manzoni-Ansidei and Storto, 1940
Manzoni-Ansidei, R.; Storto, T.,
Experimentelle beitrage zum problem der chelatringbildung. IX. Thermochemische untersuchungen an einigen methoxybenzaldehyden,
Atti. R. Acad. Italia. Rend. Classe Sci. Fis. Mat. Nat., 1940, 1, 465. [all data]
Cox and Pilcher, 1970
Cox, J.D.; Pilcher, G.,
Thermochemistry of Organic and Organometallic Compounds, Academic Press, New York, 1970, 1-636. [all data]
Aldrich Chemical Company Inc., 1990
Aldrich Chemical Company Inc.,
Catalog Handbook of Fine Chemicals, Aldrich Chemical Company, Inc., Milwaukee WI, 1990, 1. [all data]
American Tokyo Kasei, 1988
American Tokyo Kasei,
TCI American Organic Chemical 88/89 Catalog, American Tokyo Kasei, Portland, OR, 1988, 1610. [all data]
Grimm and Patrick, 1923
Grimm, F.V.; Patrick, W.A.,
The Dielectric Constastants of Organic Liquids at the Boilin Point,
J. Am. Chem. Soc., 1923, 45, 2794. [all data]
Atkins, 1915
Atkins, W.R.G.,
Spectrochemical Experiments,
Justus Liebigs Ann. Chem., 1915, 408, 212. [all data]
Perkin, 1896
Perkin, W.H.,
LXIX. On Magnetic Rotatory Power, especially of Aromatic Compounds,
J. Chem. Soc., 1896, 69, 1025-1257. [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]
Serpinskii, Voitkevich, et al., 1955
Serpinskii, V.V.; Voitkevich, S.A.; Lyuboshits, N. Yu,
Zh. Fiz. Khim., 1955, 29, 653. [all data]
Stull, 1947
Stull, Daniel R.,
Vapor Pressure of Pure Substances. Organic and Inorganic Compounds,
Ind. Eng. Chem., 1947, 39, 4, 517-540, https://doi.org/10.1021/ie50448a022
. [all data]
Scholz and Brunner, 1985
Scholz, Andreas G.R.; Brunner, Erwin,
Isobaric vapor-liquid equilibria of the binary systems consisting of anisaldehyde, methyl anisate, and anisyl alcohol at 2 kPa,
J. Chem. Eng. Data, 1985, 30, 1, 72-74, https://doi.org/10.1021/je00039a024
. [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]
Behan, Johnstone, et al., 1976
Behan, J.M.; Johnstone, R.A.W.; Bentley, T.W.,
An evaluation of empirical methods for calculating the ionization potentials of substituted benzenes,
Org. Mass Spectrom., 1976, 11, 207. [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]
Gal, Geribaldi, et al., 1985
Gal, J.-F.; Geribaldi, S.; Pfister-Guillouzo, G.; Morris, D.G.,
Basicity of the carbonyl group. Part 12. Correlations between ionization potentials and lewis basicities in aromatic carbonyl compounds,
J. Chem. Soc. Perkin Trans. 2, 1985, 103. [all data]
Baker, May, et al., 1968
Baker, A.D.; May, D.P.; Turner, D.W.,
Molecular photoelectron spectroscopy. Part VII. The vertical ionisation potentials of benzene and some of its monosubstituted and 1,4-disubstituted derivatives,
J. Chem. Soc. B, 1968, 22. [all data]
Notes
Go To: Top, Condensed phase thermochemistry data, Phase change data, Gas phase ion energetics data, References
- Symbols used in this document:
Tboil Boiling point Tfus Fusion (melting) point ΔcH°liquid Enthalpy of combustion of liquid at standard conditions ΔfH°liquid Enthalpy of formation of liquid at standard conditions ΔvapH Enthalpy of vaporization ΔvapH° Enthalpy of vaporization at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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