Benzene, 1-fluoro-4-methoxy-
- Formula: C7H7FO
- Molecular weight: 126.1283
- IUPAC Standard InChIKey: VIPWUFMFHBIKQI-UHFFFAOYSA-N
- CAS Registry Number: 459-60-9
- 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: Anisole, p-fluoro-; p-Fluoroanisole; p-Fluoromethoxybenzene; p-Fluorophenyl methyl ether; p-Methoxyfluorobenzene; 1-Fluoro-4-methoxybenzene; 4-Fluoroanisole; p-fluoroanisol
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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:
BS - Robert L. Brown and Stephen E. Stein
AC - William E. Acree, Jr., James S. Chickos
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tboil | 430. | K | N/A | PCR Inc., 1990 | BS |
Tboil | 430.2 | K | N/A | Weast and Grasselli, 1989 | BS |
Quantity | Value | Units | Method | Reference | Comment |
ΔvapH° | 48.7 ± 1.2 | kJ/mol | C | Ribeiro da Silva and Lobo Ferreira, 2009 | 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
C7H6FO- + =
By formula: C7H6FO- + H+ = C7H7FO
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1618. ± 21. | kJ/mol | G+TS | Ingemann and Nibbering, 1983 | gas phase; Between H2O, MeOH |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1586. ± 21. | kJ/mol | IMRB | Ingemann and Nibbering, 1983 | gas phase; Between H2O, MeOH |
Gas phase ion energetics data
Go To: Top, Phase change data, Reaction thermochemistry data, 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 as indicated in comments:
B - John E. Bartmess
MM - Michael M. Meot-Ner (Mautner)
LBLHLM - Sharon G. Lias, John E. Bartmess, Joel F. Liebman, John L. Holmes, Rhoda D. Levin, and W. Gary Mallard
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron
Proton affinity at 298K
Proton affinity (kJ/mol) | Reference | Comment |
---|---|---|
795. | Bogdanov, van Duijn, et al., 2002 | MM |
Gas basicity at 298K
Gas basicity (review) (kJ/mol) | Reference | Comment |
---|---|---|
767. | Bogdanov, van Duijn, et al., 2002 | MM |
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
8.26 ± 0.03 | PI | Ponomarev, Arapov, et al., 1986 | LBLHLM |
8.6 ± 0.1 | EI | Brown, 1970 | RDSH |
Appearance energy determinations
Ion | AE (eV) | Other Products | Method | Reference | Comment |
---|---|---|---|---|---|
C6H4FO+ | 11.79 ± 0.05 | CH3 | PI | Ponomarev, Arapov, et al., 1986 | LBLHLM |
C6H4OF+ | 12.0 ± 0.1 | CH3 | EI | Brown, 1970 | RDSH |
C6H4OF+ | 11.5 ± 0.1 | CH3 | EI | Tait, Shannon, et al., 1962 | RDSH |
C6H5F+ | 11.6 ± 0.1 | CH2O | EI | Brown, 1970 | RDSH |
De-protonation reactions
C7H6FO- + =
By formula: C7H6FO- + H+ = C7H7FO
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1618. ± 21. | kJ/mol | G+TS | Ingemann and Nibbering, 1983 | gas phase; Between H2O, MeOH; B |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1586. ± 21. | kJ/mol | IMRB | Ingemann and Nibbering, 1983 | gas phase; Between H2O, MeOH; B |
Mass spectrum (electron ionization)
Go To: Top, Phase change data, Reaction 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 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 | NIST Mass Spectrometry Data Center, 1990. |
NIST MS number | 118504 |
References
Go To: Top, Phase change data, Reaction thermochemistry data, Gas phase ion energetics data, Mass spectrum (electron ionization), Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
PCR Inc., 1990
PCR Inc.,
Research Chemicals Catalog 1990-1991, PCR Inc., Gainesville, FL, 1990, 1. [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]
Ribeiro da Silva and Lobo Ferreira, 2009
Ribeiro da Silva, Manuel A.V.; Lobo Ferreira, Ana I.M.C.,
Experimental and computational study on the molecular energetics of the three monofluoroanisole isomers,
The Journal of Chemical Thermodynamics, 2009, 41, 3, 361-366, https://doi.org/10.1016/j.jct.2008.09.012
. [all data]
Ingemann and Nibbering, 1983
Ingemann, S.; Nibbering, N.M.M.,
Gas phase reactions of anions with 2-,3-, and 4-fluoroanisole,
J. Org. Chem., 1983, 48, 183. [all data]
Bogdanov, van Duijn, et al., 2002
Bogdanov, B.; van Duijn, D.; Ingemann, S.; Hammerum, S.,
Protonation of fluorophenols and fluoroanisoles in the gas phase: experiment and theory,
Phys. Chem. Chem. Phys., 2002, 4, 2904. [all data]
Ponomarev, Arapov, et al., 1986
Ponomarev, D.A.; Arapov, O.V.; Sergeev, Y.L.; Chistyakov, A.B.,
[Title unavailable],
Izv. Vyssh. Uchebn. Zaved., Khim. Khim. Tekhnol., 1986, 29, 107. [all data]
Brown, 1970
Brown, P.,
Kinetic studies in mass spectrometry. VIII. Competing [M-CH3] and [M-CH2O] reactions in substituted anisoles. Approximate activation energies from ionization appearance potentials,
Org. Mass Spectrom., 1970, 4, 519. [all data]
Tait, Shannon, et al., 1962
Tait, J.M.S.; Shannon, T.W.; Harrison, A.G.,
The structure of substituted C7 ions from benzyl derivatives at the appearance potential threshold,
J. Am. Chem. Soc., 1962, 84, 4. [all data]
Notes
Go To: Top, Phase change data, Reaction thermochemistry data, Gas phase ion energetics data, Mass spectrum (electron ionization), References
- Symbols used in this document:
AE Appearance energy Tboil Boiling point ΔrG° Free energy of reaction at standard conditions ΔrH° Enthalpy of reaction at standard conditions ΔvapH° Enthalpy of vaporization at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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