Fluorine anion

Formula: F^-
Molecular weight: 18.9989518
IUPAC Standard InChI: InChI=1S/FH/h1H/p-1
IUPAC Standard InChIKey: KRHYYFGTRYWZRS-UHFFFAOYSA-M
CAS Registry Number: 16984-48-8
Chemical structure:
This structure is also available as a 2d Mol file
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Other data available:
- Gas phase thermochemistry data
- Reaction thermochemistry data: reactions 1 to 50, reactions 51 to 100, reactions 101 to 150, reactions 151 to 200, reactions 201 to 235
- Ion clustering data
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Gas phase ion energetics data

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Data compiled by: John E. Bartmess

Fluorine anion + =

By formula: F^- + H⁺ = HF

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	1555. ± 5.	kJ/mol	AVG	N/A	Average of 6 out of 7 values; Individual data points
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	1530.0 ± 0.75	kJ/mol	H-TS	Blondel, Delsart, et al., 2001	gas phase; Given: 3.4011895(25) eV, or 27432.446(19) cm-1, or 78.433266(577) kcal/mol
Δ_rG°	1529.4	kJ/mol	H-TS	Martin and Hepburn, 2000	gas phase; Given: 371.334±0.003 kcal/mol (corr to 298K with data from Wagman, Evans, et al., 1982).H(0K)=370.422±0.003
Δ_rG°	1530.0 ± 0.75	kJ/mol	H-TS	Blondel, Cacciani, et al., 1989	gas phase; Reported: 3.401190±0.000004 eV. acidity includes 0.9 kcal 0 to 298 K correction.
Δ_rG°	1529. ± 8.4	kJ/mol	IMRE	Bierbaum, Schmidt, et al., 1981	gas phase
Δ_rG°	1503.7	kJ/mol	N/A	Check, Faust, et al., 2001	gas phase; FeCl3-; ; ΔS(EA)=5.0

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Blondel, Delsart, et al., 2001
Blondel, C.; Delsart, C.; Goldfarb, F., Electron spectrometry at the mu eV level and the electron affinities of Si and F, J. Phys. B: Atom. Mol. Opt. Phys., 2001, 34, 9, L281-L288, https://doi.org/10.1088/0953-4075/34/9/101 . [all data]

Martin and Hepburn, 2000
Martin, J.D.D.; Hepburn, J.W., Faraday Disc. Chem. Soc., 2000, 115, 416. [all data]

Wagman, Evans, et al., 1982
Wagman, D.D.; Evans, W.H.; Parker, V.B.; Schumm, R.H.; Halow, I.; Bailey, S.M.; Churney, K.L.; Nuttall, R.L., The NBS Tables of Chemical Thermodynamic Properties (NBS Tech Note 270), J. Phys. Chem. Ref. Data, Supl. 1, 1982, 11. [all data]

Blondel, Cacciani, et al., 1989
Blondel, C.; Cacciani, P.; Delsart, C.; Trainham, R., High Resolution Determination of the Electron Affinity of Fluorine and Bromine using Crossed Ion and Laser Beams, Phys. Rev. A, 1989, 40, 7, 3698, https://doi.org/10.1103/PhysRevA.40.3698 . [all data]

Bierbaum, Schmidt, et al., 1981
Bierbaum, V.M.; Schmidt, R.J.; DePuy, C.H.; Mead, R.H.; Schulz, P.A.; Lineberger, W.C., Reactions of carbanions with triplet and singlet molecular oxygen, J. Am. Chem. Soc., 1981, 103, 6262. [all data]

Check, Faust, et al., 2001
Check, C.E.; Faust, T.O.; Bailey, J.M.; Wright, B.J.; Gilbert, T.M.; Sunderlin, L.S., Addition of Polarization and Diffuse Functions to the LANL2DZ Basis Set for P-Block Elements, J. Phys. Chem. A,, 2001, 105, 34, 8111, https://doi.org/10.1021/jp011945l . [all data]

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Symbols used in this document:

Δ_rG° Free energy of reaction at standard conditions

Δ_rH° Enthalpy of reaction at standard conditions
Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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Δ_rG°	Free energy of reaction at standard conditions
Δ_rH°	Enthalpy of reaction at standard conditions