Benzene, fluoro-

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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 as indicated in comments:
B - John E. Bartmess
M - Michael M. Meot-Ner (Mautner) and Sharon G. Lias
RCD - Robert C. Dunbar

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

C6H4F- + Hydrogen cation = Benzene, fluoro-

By formula: C6H4F- + H+ = C6H5F

Quantity Value Units Method Reference Comment
ΔrH°386.8 ± 2.1kcal/molG+TSBuker, Nibbering, et al., 1997gas phase; B
ΔrH°387.3 ± 2.1kcal/molG+TSAndrade and Riveros, 1996gas phase; B
ΔrH°387.2 ± 2.5kcal/molTDEqMeot-ner and Kafafi, 1988gas phase; anchored to 88MEO scale, not the "87 acidity scale". The Kiefer, Zhang, et al., 1997 BDE is for ortho.; B
ΔrH°387.2 ± 2.5kcal/molBranWenthold and Squires, 1995gas phase; By HO- cleavage of substituted silanes; B
ΔrH°387.2 ± 5.4kcal/molG+TSBriscese and Riveros, 1975gas phase; B
Quantity Value Units Method Reference Comment
ΔrG°378.6 ± 2.0kcal/molIMREBuker, Nibbering, et al., 1997gas phase; B
ΔrG°379.1 ± 2.0kcal/molIMREAndrade and Riveros, 1996gas phase; B
ΔrG°378.9 ± 2.0kcal/molTDEqMeot-ner and Kafafi, 1988gas phase; anchored to 88MEO scale, not the "87 acidity scale". The Kiefer, Zhang, et al., 1997 BDE is for ortho.; B
ΔrG°379.0 ± 2.6kcal/molH-TSWenthold and Squires, 1995gas phase; By HO- cleavage of substituted silanes; B
ΔrG°379.0 ± 5.3kcal/molIMRBBriscese and Riveros, 1975gas phase; B

Bromine anion + Benzene, fluoro- = (Bromine anion • Benzene, fluoro-)

By formula: Br- + C6H5F = (Br- • C6H5F)

Quantity Value Units Method Reference Comment
ΔrH°10.6 ± 1.6kcal/molIMREPaul and Kebarle, 1991gas phase; ΔGaff measured at 303 K, corrected to 423 K, ΔSaff taken as that of PhNO2..Br-; B,M
Quantity Value Units Method Reference Comment
ΔrS°20.cal/mol*KN/APaul and Kebarle, 1991gas phase; Entropy change calculated or estimated; M
Quantity Value Units Method Reference Comment
ΔrG°2.1 ± 1.0kcal/molIMREPaul and Kebarle, 1991gas phase; ΔGaff measured at 303 K, corrected to 423 K, ΔSaff taken as that of PhNO2..Br-; B

Free energy of reaction

ΔrG° (kcal/mol) T (K) Method Reference Comment
2.1423.PHPMSPaul and Kebarle, 1991gas phase; Entropy change calculated or estimated; M

C6H5F+ + Benzene, fluoro- = (C6H5F+ • Benzene, fluoro-)

By formula: C6H5F+ + C6H5F = (C6H5F+ • C6H5F)

Bond type: Charge transfer bond (positive ion)

Quantity Value Units Method Reference Comment
ΔrH°7.1kcal/molPIRuhl, Bisling, et al., 1986gas phase; from vIP of perpendicular dimer; M
ΔrH°14.1kcal/molPHPMSMeot-Ner (Mautner), Hamlet, et al., 1978gas phase; Entropy change calculated or estimated; M
Quantity Value Units Method Reference Comment
ΔrS°27.cal/mol*KN/AMeot-Ner (Mautner), Hamlet, et al., 1978gas phase; Entropy change calculated or estimated; M

Free energy of reaction

ΔrG° (kcal/mol) T (K) Method Reference Comment
5.3356.PHPMSMeot-Ner (Mautner), Hamlet, et al., 1978gas phase; Entropy change calculated or estimated; M

C6H6+ + Benzene, fluoro- = (C6H6+ • Benzene, fluoro-)

By formula: C6H6+ + C6H5F = (C6H6+ • C6H5F)

Bond type: Charge transfer bond (positive ion)

Quantity Value Units Method Reference Comment
ΔrH°6.6kcal/molPIRuhl, Bisling, et al., 1986gas phase; from vIP of perpendicular dimer; M
ΔrH°17.0kcal/molPHPMSMeot-Ner (Mautner), Hamlet, et al., 1978gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°30.cal/mol*KPHPMSMeot-Ner (Mautner), Hamlet, et al., 1978gas phase; M

C6H4F- + Hydrogen cation = Benzene, fluoro-

By formula: C6H4F- + H+ = C6H5F

Quantity Value Units Method Reference Comment
ΔrH°399.60 ± 0.90kcal/molBranWenthold and Squires, 1995gas phase; By HO- cleavage of substituted silanes; B
Quantity Value Units Method Reference Comment
ΔrG°391.8 ± 1.0kcal/molH-TSWenthold and Squires, 1995gas phase; By HO- cleavage of substituted silanes; B

C6H4F- + Hydrogen cation = Benzene, fluoro-

By formula: C6H4F- + H+ = C6H5F

Quantity Value Units Method Reference Comment
ΔrH°395.2 ± 2.0kcal/molBranWenthold and Squires, 1995gas phase; By HO- cleavage of substituted silanes; B
Quantity Value Units Method Reference Comment
ΔrG°387.0 ± 2.1kcal/molH-TSWenthold and Squires, 1995gas phase; By HO- cleavage of substituted silanes; B

C6H7N+ + Benzene, fluoro- = (C6H7N+ • Benzene, fluoro-)

By formula: C6H7N+ + C6H5F = (C6H7N+ • C6H5F)

Bond type: Charge transfer bond (positive ion)

Quantity Value Units Method Reference Comment
ΔrH°11.7kcal/molPHPMSMeot-Ner (Mautner) and El-Shall, 1986gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°26.5cal/mol*KPHPMSMeot-Ner (Mautner) and El-Shall, 1986gas phase; M

Nitric oxide anion + Benzene, fluoro- = (Nitric oxide anion • Benzene, fluoro-)

By formula: NO- + C6H5F = (NO- • C6H5F)

Quantity Value Units Method Reference Comment
ΔrH°37.8kcal/molICRReents and Freiser, 1981gas phase; switching reaction,Thermochemical ladder(NO+)C2H5OH, Entropy change calculated or estimated; Farid and McMahon, 1978; M

Chlorine anion + Benzene, fluoro- = (Chlorine anion • Benzene, fluoro-)

By formula: Cl- + C6H5F = (Cl- • C6H5F)

Quantity Value Units Method Reference Comment
ΔrG°5.90kcal/molTDEqFrench, Ikuta, et al., 1982gas phase; B

Free energy of reaction

ΔrG° (kcal/mol) T (K) Method Reference Comment
5.9300.PHPMSFrench, Ikuta, et al., 1982gas phase; M

C7H8+ + Benzene, fluoro- = (C7H8+ • Benzene, fluoro-)

By formula: C7H8+ + C6H5F = (C7H8+ • C6H5F)

Bond type: Charge transfer bond (positive ion)

Quantity Value Units Method Reference Comment
ΔrH°3.9kcal/molPIRuhl, Bisling, et al., 1986gas phase; from vIP of perpendicular dimer; M

NH4+ + Benzene, fluoro- = (NH4+ • Benzene, fluoro-)

By formula: H4N+ + C6H5F = (H4N+ • C6H5F)

Quantity Value Units Method Reference Comment
ΔrH°14.4kcal/molPHPMSDeakyne and Meot-Ner (Mautner), 1985gas phase; M
Quantity Value Units Method Reference Comment
ΔrS°18.0cal/mol*KPHPMSDeakyne and Meot-Ner (Mautner), 1985gas phase; M

(V- • Benzene, fluoro-) + Benzene = (V- • Benzene • Benzene, fluoro-)

By formula: (V- • C6H5F) + C6H6 = (V- • C6H6 • C6H5F)

Quantity Value Units Method Reference Comment
ΔrH°3. ± 15.kcal/molN/AJudai, Hirano, et al., 1997gas phase; B

V- + Benzene, fluoro- = (V- • Benzene, fluoro-)

By formula: V- + C6H5F = (V- • C6H5F)

Quantity Value Units Method Reference Comment
ΔrH°14.4 ± 3.8kcal/molN/AJudai, Hirano, et al., 1997gas phase; B

(Lithium ion (1+) • Benzene, fluoro-) + Benzene, fluoro- = (Lithium ion (1+) • 2Benzene, fluoro-)

By formula: (Li+ • C6H5F) + C6H5F = (Li+ • 2C6H5F)

Quantity Value Units Method Reference Comment
ΔrH°22.7 ± 0.7kcal/molCIDTAmunugama and Rodgers, 2002RCD

(Sodium ion (1+) • Benzene, fluoro-) + Benzene, fluoro- = (Sodium ion (1+) • 2Benzene, fluoro-)

By formula: (Na+ • C6H5F) + C6H5F = (Na+ • 2C6H5F)

Quantity Value Units Method Reference Comment
ΔrH°15.7 ± 0.9kcal/molCIDTAmunugama and Rodgers, 2002RCD

(Cesium ion (1+) • Benzene, fluoro-) + Benzene, fluoro- = (Cesium ion (1+) • 2Benzene, fluoro-)

By formula: (Cs+ • C6H5F) + C6H5F = (Cs+ • 2C6H5F)

Quantity Value Units Method Reference Comment
ΔrH°10.7 ± 1.1kcal/molCIDTAmunugama and Rodgers, 2002RCD

(Rubidium ion (1+) • Benzene, fluoro-) + Benzene, fluoro- = (Rubidium ion (1+) • 2Benzene, fluoro-)

By formula: (Rb+ • C6H5F) + C6H5F = (Rb+ • 2C6H5F)

Quantity Value Units Method Reference Comment
ΔrH°11.3 ± 1.2kcal/molCIDTAmunugama and Rodgers, 2002RCD

(Potassium ion (1+) • Benzene, fluoro-) + Benzene, fluoro- = (Potassium ion (1+) • 2Benzene, fluoro-)

By formula: (K+ • C6H5F) + C6H5F = (K+ • 2C6H5F)

Quantity Value Units Method Reference Comment
ΔrH°12.0 ± 0.7kcal/molCIDTAmunugama and Rodgers, 2002RCD

Lithium ion (1+) + Benzene, fluoro- = (Lithium ion (1+) • Benzene, fluoro-)

By formula: Li+ + C6H5F = (Li+ • C6H5F)

Quantity Value Units Method Reference Comment
ΔrH°35.1 ± 5.0kcal/molCIDTAmunugama and Rodgers, 2002RCD

Sodium ion (1+) + Benzene, fluoro- = (Sodium ion (1+) • Benzene, fluoro-)

By formula: Na+ + C6H5F = (Na+ • C6H5F)

Quantity Value Units Method Reference Comment
ΔrH°16.7 ± 0.8kcal/molCIDTAmunugama and Rodgers, 2002RCD

Cesium ion (1+) + Benzene, fluoro- = (Cesium ion (1+) • Benzene, fluoro-)

By formula: Cs+ + C6H5F = (Cs+ • C6H5F)

Quantity Value Units Method Reference Comment
ΔrH°12.0 ± 1.2kcal/molCIDTAmunugama and Rodgers, 2002RCD

Rubidium ion (1+) + Benzene, fluoro- = (Rubidium ion (1+) • Benzene, fluoro-)

By formula: Rb+ + C6H5F = (Rb+ • C6H5F)

Quantity Value Units Method Reference Comment
ΔrH°12.8 ± 1.3kcal/molCIDTAmunugama and Rodgers, 2002RCD

Potassium ion (1+) + Benzene, fluoro- = (Potassium ion (1+) • Benzene, fluoro-)

By formula: K+ + C6H5F = (K+ • C6H5F)

Quantity Value Units Method Reference Comment
ΔrH°13.2 ± 0.7kcal/molCIDTAmunugama and Rodgers, 2002RCD

Chromium ion (1+) + Benzene, fluoro- = (Chromium ion (1+) • Benzene, fluoro-)

By formula: Cr+ + C6H5F = (Cr+ • C6H5F)

Quantity Value Units Method Reference Comment
ΔrH°39.2kcal/molRAKRyzhov, 1999RCD

References

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

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]

Andrade and Riveros, 1996
Andrade, P.B.M.; Riveros, J.M., Relative Gas-phase Acidities of Fluoro- and Chlorobenzene, J. Mass Spectrom., 1996, 31, 7, 767, https://doi.org/10.1002/(SICI)1096-9888(199607)31:7<767::AID-JMS345>3.0.CO;2-Q . [all data]

Meot-ner and Kafafi, 1988
Meot-ner, M.; Kafafi, S.A., Carbon Acidities of Aromatic Compounds, J. Am. Chem. Soc., 1988, 110, 19, 6297, https://doi.org/10.1021/ja00227a003 . [all data]

Kiefer, Zhang, et al., 1997
Kiefer, J.H.; Zhang, Q.; Kern, R.D.; Yao, J.; Jursic, B., Pyrolysis of Aromatic Azines: Pyrazine, Pyrimidine, and Pyridine, J. Phys. Chem. A, 1997, 101, 38, 7061, https://doi.org/10.1021/jp970211z . [all data]

Wenthold and Squires, 1995
Wenthold, P.G.; Squires, R.R., Determination of the gas-phase acidities of halogen-substituted aromatic compounds using the silane-cleavage method, J. Mass Spectrom., 1995, 30, 1, 17, https://doi.org/10.1002/jms.1190300105 . [all data]

Briscese and Riveros, 1975
Briscese, S.M.J.; Riveros, J.M., Gas phase nucleophilic reactions of aromatic systems, J. Am. Chem. Soc., 1975, 97, 230. [all data]

Paul and Kebarle, 1991
Paul, G.J.C.; Kebarle, P., Stabilities of Complexes of Br- with Substituted Benzenes (SB) Based on Determinations of the Gas-Phase Equilibria Br- + SB = (BrSB)-, J. Am. Chem. Soc., 1991, 113, 4, 1148, https://doi.org/10.1021/ja00004a014 . [all data]

Ruhl, Bisling, et al., 1986
Ruhl, E.; Bisling, P.G.F.; Brutschy, B.; Baumgartel, H., Photoionization of Aromatic van der Waals Complexes in a Supersonic Jet, Chem. Phys. Lett., 1986, 126, 3-4, 232, https://doi.org/10.1016/S0009-2614(86)80075-6 . [all data]

Meot-Ner (Mautner), Hamlet, et al., 1978
Meot-Ner (Mautner), M.; Hamlet, P.; Hunter, E.P.; Field, F.H., Bonding Energies in Association Ions of Aromatic Molecules. Correlations with Ionization Energies, J. Am. Chem. Soc., 1978, 100, 17, 5466, https://doi.org/10.1021/ja00485a034 . [all data]

Meot-Ner (Mautner) and El-Shall, 1986
Meot-Ner (Mautner), M.; El-Shall, M.S., Ionic Charge Transfer Complexes. 1. Cationic Complexes with Delocalized and Partially Localized pi Systems, J. Am. Chem. Soc., 1986, 108, 15, 4386, https://doi.org/10.1021/ja00275a026 . [all data]

Reents and Freiser, 1981
Reents, W.D.; Freiser, B.S., Gas-Phase Binding Energies and Spectroscopic Properties of NO+ Charge-Transfer Complexes, J. Am. Chem. Soc., 1981, 103, 2791. [all data]

Farid and McMahon, 1978
Farid, R.; McMahon, T.B., Gas-Phase Ion-Molecule Reactions of Alkyl Nitrites by Ion Cyclotron Resonance Spectroscopy, Int. J. Mass Spectrom. Ion Phys., 1978, 27, 2, 163, https://doi.org/10.1016/0020-7381(78)80037-0 . [all data]

French, Ikuta, et al., 1982
French, M.A.; Ikuta, S.; Kebarle, P., Hydrogen bonding of O-H and C-H hydrogen donors to Cl-. Results from mass spectrometric measurement of the ion-molecule equilibria RH + Cl- = RHCl-, Can. J. Chem., 1982, 60, 1907. [all data]

Deakyne and Meot-Ner (Mautner), 1985
Deakyne, C.A.; Meot-Ner (Mautner), M., Unconventional Ionic Hydrogen Bonds. 2. NH+ pi. Complexes of Onium Ions with Olefins and Benzene Derivatives, J. Am. Chem. Soc., 1985, 107, 2, 474, https://doi.org/10.1021/ja00288a034 . [all data]

Judai, Hirano, et al., 1997
Judai, K.; Hirano, M.; Kawamata, H.; Yabushita, S.; Nakajima, A.; Kaya, K., Formation of Vanadium-Arene Complex Anions and Their Photoelectron Spectroscopy, Chem. Phys. Lett., 1997, 270, 1-2, 23, https://doi.org/10.1016/S0009-2614(97)00336-9 . [all data]

Amunugama and Rodgers, 2002
Amunugama, R.; Rodgers, M.T., Influence of substituents on cation-pi interactions. 2. Absolute binding energies of alkali metal cation-fluorobenzene complexes determined by threshold collision-induced dissociation and theoretical studies, J. Phys. Chem. A, 2002, 106, 39, 9092, https://doi.org/10.1021/jp020459a . [all data]

Ryzhov, 1999
Ryzhov, V., Binding Energies of Chromium Cations with Fluorobenzenes from Radiative Association Kinetics, Int. J. Mass Spectrom., 1999, 185/186/187, 913. [all data]

Notes

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