1,2,4-Trifluorobenzene
- Formula: C6H3F3
- Molecular weight: 132.0832
- IUPAC Standard InChIKey: PEBWOGPSYUIOBP-UHFFFAOYSA-N
- CAS Registry Number: 367-23-7
- 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: Benzene, 1,2,4-trifluoro-; 1,3,4-Trifluorobenzene
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Phase change data
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.
Data compiled by: Robert L. Brown and Stephen E. Stein
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tboil | 362. to 364. | K | N/A | PCR Inc., 1990 |
Reduced pressure boiling point
Tboil (K) | Pressure (bar) | Reference |
---|---|---|
361.2 | 1.01 | Aldrich Chemical Company Inc., 1990 |
Gas phase ion energetics data
Go To: Top, Phase change data, References, Notes
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
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Proton affinity (review) | 729.5 | kJ/mol | N/A | Hunter and Lias, 1998 | HL |
Quantity | Value | Units | Method | Reference | Comment |
Gas basicity | 699.4 | kJ/mol | N/A | Hunter and Lias, 1998 | HL |
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
9.304 ± 0.008 | EQ | Lias and Ausloos, 1978 | LLK |
9.30 ± 0.05 | PE | Clark and Frost, 1967 | RDSH |
9.37 | PI | Bralsford, Harris, et al., 1960 | RDSH |
Appearance energy determinations
Ion | AE (eV) | Other Products | Method | Reference | Comment |
---|---|---|---|---|---|
C6H3F2+ | 15.2 ± 0.1 | F | EI | Majer and Patrick, 1962 | RDSH |
De-protonation reactions
C6H2F3- + =
By formula: C6H2F3- + H+ = C6H3F3
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1549. ± 8.8 | kJ/mol | G+TS | Buker, Nibbering, et al., 1997 | gas phase; B |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1517. ± 8.4 | kJ/mol | IMRE | Buker, Nibbering, et al., 1997 | gas phase; B |
References
Go To: Top, 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.
PCR Inc., 1990
PCR Inc.,
Research Chemicals Catalog 1990-1991, PCR Inc., Gainesville, FL, 1990, 1. [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]
Lias and Ausloos, 1978
Lias, S.G.; Ausloos, P.J.,
eIonization energies of organic compounds by equilibrium measurements,
J. Am. Chem. Soc., 1978, 100, 6027. [all data]
Clark and Frost, 1967
Clark, I.D.; Frost, D.C.,
A study of the energy levels in benzene and some fluorobenzenes by photoelectron spectroscopy,
J. Am. Chem. Soc., 1967, 89, 244. [all data]
Bralsford, Harris, et al., 1960
Bralsford, R.; Harris, P.V.; Price, W.C.,
The effect of fluorine on the electronic spectra and ionization potentials of molecules,
Proc. Roy. Soc. (London), 1960, A258, 459. [all data]
Majer and Patrick, 1962
Majer, J.R.; Patrick, C.R.,
Electron impact on some halogenated aromatic compounds,
J. Chem. Soc. Faraday Trans., 1962, 58, 17. [all data]
Buker, Nibbering, et al., 1997
Buker, H.H.; Nibbering, N.M.M.; Espinosa, D.; Mongin, F.; Schlosser, M.,
Additivity of substituent effects in the fluoroarene series: Equilibrium acidity in the gas phase and deprotonation rates in ethereal solution,
Tetrahed. Lett., 1997, 38, 49, 8519-8522, https://doi.org/10.1016/S0040-4039(97)10303-3
. [all data]
Notes
Go To: Top, Phase change data, Gas phase ion energetics data, 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 - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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