Benzaldehyde, 3-methoxy-
- Formula: C8H8O2
- Molecular weight: 136.1479
- IUPAC Standard InChIKey: WMPDAIZRQDCGFH-UHFFFAOYSA-N
- CAS Registry Number: 591-31-1
- 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: m-Anisaldehyde; m-Methoxybenzaldehyde; 3-Anisaldehyde; 3-Methoxybenzaldehyde; Metamethoxybenzaldehyde
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Condensed phase thermochemistry data
Go To: Top, Phase change 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 by: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔcH°liquid | -959.7 ± 1.8 | kcal/mol | Ccb | Manzoni-Ansidei and Storto, 1940 | Reanalyzed by Cox and Pilcher, 1970, Original value = -960.79 kcal/mol; Corresponding ΔfHºliquid = -65.97 kcal/mol (simple calculation by NIST; no Washburn corrections) |
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 by: Robert L. Brown and Stephen E. Stein
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tboil | 503. | K | N/A | American Tokyo Kasei, 1988 |
Reduced pressure boiling point
Tboil (K) | Pressure (atm) | Reference |
---|---|---|
416.2 | 0.066 | Aldrich Chemical Company Inc., 1990 |
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
View reactions leading to C8H8O2+ (ion structure unspecified)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Proton affinity (review) | 201.7 | kcal/mol | N/A | Hunter and Lias, 1998 | HL |
Quantity | Value | Units | Method | Reference | Comment |
Gas basicity | 194.1 | kcal/mol | N/A | Hunter and Lias, 1998 | HL |
Electron affinity determinations
EA (eV) | Method | Reference | Comment |
---|---|---|---|
0.429 ± 0.043 | ECD | Wentworth, Kao, et al., 1975 | B |
IR 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.
Data compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director
Gas Phase Spectrum
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Notice: Concentration information is not available for this spectrum and, therefore, molar absorptivity values cannot be derived.
Additional Data
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Owner | NIST Standard Reference Data Program Collection (C) 2018 copyright by the U.S. Secretary of Commerce on behalf of the United States of America. All rights reserved. |
---|---|
Origin | Sadtler Research Labs Under US-EPA Contract |
State | gas |
Mass spectrum (electron ionization)
Go To: Top, Condensed phase thermochemistry data, Phase change data, Gas phase ion energetics data, IR Spectrum, 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 by: NIST Mass Spectrometry Data Center, William E. Wallace, director
Spectrum
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Additional Data
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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- 750 |
NIST MS number | 228630 |
Gas Chromatography
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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
Kovats' RI, non-polar column, isothermal
Column type | Active phase | Temperature (C) | I | Reference | Comment |
---|---|---|---|---|---|
Packed | OV-101 | 140. | 1178.6 | Righezza, Hassani, et al., 1996 | N2, Chromosorb G HP; Column length: 5. m |
Packed | OV-101 | 160. | 1187.8 | Hassani and Meklati, 1992 | N2, Chromosorb G HP; Column length: 5. m |
Van Den Dool and Kratz RI, non-polar column, custom temperature program
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | HP-5MS | 1196.3 | Andriamaharavo, 2014 | 30. m/0.25 mm/0.25 μm, He; Program: 60C (1 min) => 5 C/min => 210C => 10 C/min => 280C (15 min) |
Capillary | DB-5MS | 1176. | Varlet V., Knockaert C., et al., 2006 | 30. m/0.32 mm/0.5 μm, He; Program: 70C(1min) => 3C/min => 80C(1min) => 5C/min => 150C => 10C/min => 280C (4min) |
Normal alkane RI, non-polar column, temperature ramp
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | DB-5 | 1194. | Tellez, Khan, et al., 2002 | 30. m/0.25 mm/0.25 μm, He, 3. K/min; Tstart: 60. C; Tend: 240. C |
References
Go To: Top, Condensed phase thermochemistry data, Phase change 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.
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]
American Tokyo Kasei, 1988
American Tokyo Kasei,
TCI American Organic Chemical 88/89 Catalog, American Tokyo Kasei, Portland, OR, 1988, 1610. [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]
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]
Wentworth, Kao, et al., 1975
Wentworth, W.E.; Kao, L.W.; Becker, R.S.,
Electron affinities of substituted aromatic compounds,
J. Phys. Chem., 1975, 79, 1161. [all data]
Righezza, Hassani, et al., 1996
Righezza, M.; Hassani, A.; Meklati, B.Y.; Chrétien, J.R.,
Quantitative structure-retention relationships (QSRR) of congeneric aromatics series studied on phenyl OV phases in gas chromatography,
J. Chromatogr. A, 1996, 723, 1, 77-91, https://doi.org/10.1016/0021-9673(95)00816-0
. [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]
Andriamaharavo, 2014
Andriamaharavo, N.R.,
Retention Data. NIST Mass Spectrometry Data Center., NIST Mass Spectrometry Data Center, 2014. [all data]
Varlet V., Knockaert C., et al., 2006
Varlet V.; Knockaert C.; Prost C.; Serot T.,
Comparison of odor-active volatile compounds of fresh and smoked salmon,
J. Agric. Food Chem., 2006, 54, 9, 3391-3401, https://doi.org/10.1021/jf053001p
. [all data]
Tellez, Khan, et al., 2002
Tellez, M.R.; Khan, I.A.; Kobaisy, M.; Schrader, K.K.; Dayan, F.E.; Osbrink, W.,
Composition of the essential oil of Lepidium meyenii (Walp.),
Phytochemistry, 2002, 61, 2, 149-155, https://doi.org/10.1016/S0031-9422(02)00208-X
. [all data]
Notes
Go To: Top, Condensed phase thermochemistry data, Phase change data, Gas phase ion energetics data, IR Spectrum, Mass spectrum (electron ionization), Gas Chromatography, References
- Symbols used in this document:
EA Electron affinity Tboil Boiling point ΔcH°liquid Enthalpy of combustion of liquid at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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