Selected ATcT [1, 2] enthalpy of formation based on version 1.124 of the Thermochemical Network [3]

This version of ATcT results was generated by additional expansion of version 1.122x [4] to include additional information relevant to the study of thermophysical and thermochemical properties of CH2 and CH3 using nonrigid rotor anharmonic oscillator (NRRAO) partition functions [5], the development and benchmarking of a state-of-the-art computational approach that aims to reproduce total atomization energies of small molecules within 10–15 cm^-1 [6], as well as the study of the reversible reaction C₂H₃ + H₂ ⇌ C₂H₄ + H ⇌ C₂H₅ [7]

Fluorine atom cation

Formula: F+ (g)

CAS RN: 14701-13-4

ATcT ID: 14701-13-4*0

SMILES: [F+]

InChI: InChI=1S/F/q+1

InChIKey: LMHDQOWNISVSPD-UHFFFAOYSA-N

Hills Formula: F1+

2D Image:

Aliases: F+; Fluorine atom cation; Fluorine atom ion (1+); Fluorine cation; Fluorine ion (1+); Atomic fluorine cation; Atomic fluorine ion (1+); Monofluorine cation; Monofluorine ion (1+); Fluorine radical cation; Fluorine radical ion (1+)

Relative Molecular Mass: 18.99785462 ± 0.00000050

Δ_fH°(0 K)	Δ_fH°(298.15 K)	Uncertainty	Units
1758.300	1760.599	± 0.017	kJ/mol

3D Image of F+ (g)

spin ON spin OFF

Top contributors to the provenance of Δ_fH° of F+ (g)

The 4 contributors listed below account for 91.0% of the provenance of Δ_fH° of F+ (g).

Please note: The list is limited to 20 most important contributors or, if less, a number sufficient to account for 90% of the provenance. The Reference acts as a further link to the relevant references and notes for the measurement. The Measured Quantity is normaly given in the original units; in cases where we have reinterpreted the original measurement, the listed value may differ from that given by the authors. The quoted uncertainty is the a priori uncertainty used as input when constructing the initial Thermochemical Network, and corresponds either to the value proposed by the original authors or to our estimate; if an additional multiplier is given in parentheses immediately after the prior uncertainty, it corresponds to the factor by which the prior uncertainty needed to be multiplied during the ATcT analysis in order to make that particular measurement consistent with the prevailing knowledge contained in the Thermochemical Network.

Contribution (%)	TN ID	Reaction	Measured Quantity	Reference
57.3	439.1	F2 (g) → F+ (g) + F- (g)	Δ_rH°(0 K) = 15.62294 ± 0.00043 eV	Matthiasson 2021
29.4	440.1	F2 (g) → F+ (g) + F (g)	Δ_rH°(0 K) = 19.0242 ± 0.0006 eV	Matthiasson 2021
2.1	418.1	F2 (g) → 2 F (g)	Δ_rH°(0 K) = 36.91 ± 0.05 kcal/mol	Feller 2014
2.0	425.1	F (g) → F+ (g)	Δ_rH°(0 K) = 140524.5 ± 0.4 cm-1	Liden 1949, Moore 1970

Top 10 species with enthalpies of formation correlated to the Δ_fH° of F+ (g)

Please note: The correlation coefficients are obtained by renormalizing the off-diagonal elements of the covariance matrix by the corresponding variances.
The correlation coefficient is a number from -1 to 1, with 1 representing perfectly correlated species, -1 representing perfectly anti-correlated species, and 0 representing perfectly uncorrelated species.

Correlation Coefficent (%)	Species Name	Formula	Δ_fH°(0 K)	Δ_fH°(298.15 K)	Uncertainty	Units	Relative Molecular Mass	ATcT ID
96.1	Fluorine atom	F (g)	77.252	79.358	± 0.017	kJ/mol	18.99840320 ± 0.00000050	14762-94-8*0
96.1	Fluorine atom	F (g, 2P3/2)	77.252	79.037	± 0.017	kJ/mol	18.99840320 ± 0.00000050	14762-94-8*1
96.1	Fluorine atom	F (g, 2P1/2)	82.087	83.872	± 0.017	kJ/mol	18.99840320 ± 0.00000050	14762-94-8*2
96.1	Fluoride	F- (g)	-250.912	-249.128	± 0.017	kJ/mol	18.99895178 ± 0.00000050	16984-48-8*0
86.1	Hydrogen fluoride	HF (g)	-272.680	-272.727	± 0.019	kJ/mol	20.006343 ± 0.000070	7664-39-3*0
80.1	Fluorine atom dication	[F]+2 (g)	5132.471	5134.255	± 0.021	kJ/mol	18.99730604 ± 0.00000050	14701-07-6*0
71.6	Fluoroniumyl ion	[HF]+ (g)	1275.555	1275.787	± 0.022	kJ/mol	20.005795 ± 0.000070	12381-92-9*0
51.4	Fluorine atom trication	[F]+3 (g)	11182.871	11186.696	± 0.032	kJ/mol	18.99675746 ± 0.00000050	14700-88-0*0
50.5	Chlorine fluoride	ClF (g)	-55.623	-55.718	± 0.030	kJ/mol	54.45110 ± 0.00090	7790-89-8*0
13.7	Tetrafluoromethane	CF4 (g)	-927.77	-933.74	± 0.23	kJ/mol	88.00431 ± 0.00080	75-73-0*0

Most Influential reactions involving F+ (g)

Please note: The list, which is based on a hat (projection) matrix analysis, is limited to no more than 20 largest influences.

Influence Coefficient	TN ID	Reaction	Measured Quantity	Reference
1.000	429.1	F+ (g) → [F]+2 (g)	Δ_rH°(0 K) = 282058.6 ± 1.0 cm-1	NIST Atomic Web, Palenius 1969
0.871	425.1	F (g) → F+ (g)	Δ_rH°(0 K) = 140524.5 ± 0.4 cm-1	Liden 1949, Moore 1970
0.585	439.1	F2 (g) → F+ (g) + F- (g)	Δ_rH°(0 K) = 15.62294 ± 0.00043 eV	Matthiasson 2021
0.300	440.1	F2 (g) → F+ (g) + F (g)	Δ_rH°(0 K) = 19.0242 ± 0.0006 eV	Matthiasson 2021
0.115	425.3	F (g) → F+ (g)	Δ_rH°(0 K) = 140525.6 ± 1.1 cm-1	Biemont 1999
0.057	599.4	[FFH]+ (g) → HF (g) + F+ (g)	Δ_rH°(0 K) = 74.19 ± 1.50 kcal/mol	Ruscic W1RO
0.050	599.1	[FFH]+ (g) → HF (g) + F+ (g)	Δ_rH°(0 K) = 73.13 ± 1.60 kcal/mol	Ruscic G4
0.050	599.3	[FFH]+ (g) → HF (g) + F+ (g)	Δ_rH°(0 K) = 74.42 ± 1.60 kcal/mol	Ruscic CBS-n
0.027	599.2	[FFH]+ (g) → HF (g) + F+ (g)	Δ_rH°(0 K) = 73.98 ± 2.16 kcal/mol	Ruscic CBS-n
0.009	425.2	F (g) → F+ (g)	Δ_rH°(0 K) = 140525.3 ± 3.9 cm-1	Huffman 1967
0.005	439.2	F2 (g) → F+ (g) + F- (g)	Δ_rH°(0 K) = 126042 ± 8 (×4.362) cm-1	Yang 2005
0.002	425.10	F (g) → F+ (g)	Δ_rH°(0 K) = 17.42255 ± 0.00088 eV	Klopper 2010
0.001	599.5	[FFH]+ (g) → HF (g) + F+ (g)	Δ_rH°(0 K) = 276.76 ± 16 (×2.181) kJ/mol	Li 2000, est unc
0.001	439.4	F2 (g) → F+ (g) + F- (g)	Δ_rH°(0 K) = 15.62 ± 0.01 eV	Berkowitz 1971a, Berkowitz 1971, Berkowitz 1973, note F2
0.000	440.3	F2 (g) → F+ (g) + F (g)	Δ_rH°(0 K) = 19.017 ± 0.016 eV	Berkowitz 1971, Berkowitz 1973, Berkowitz 1971a, note F2
0.000	439.6	F2 (g) → F+ (g) + F- (g)	Δ_rH°(0 K) = 15.635 ± 0.030 eV	Chupka 1971b
0.000	439.5	F2 (g) → F+ (g) + F- (g)	Δ_rH°(0 K) = 15.63 ± 0.04 eV	Chupka 1971a
0.000	440.4	F2 (g) → F+ (g) + F (g)	Δ_rH°(0 K) = 19.03 ± 0.05 eV	Dibeler 1969, note F2
0.000	429.2	F+ (g) → [F]+2 (g)	Δ_rH°(0 K) = 282190.2 ± 200 cm-1
0.000	425.9	F (g) → F+ (g)	Δ_rH°(0 K) = 17.422 ± 0.032 eV	Parthiban 2001

References

1		B. Ruscic, R. E. Pinzon, M. L. Morton, G. von Laszewski, S. Bittner, S. G. Nijsure, K. A. Amin, M. Minkoff, and A. F. Wagner, Introduction to Active Thermochemical Tables: Several "Key" Enthalpies of Formation Revisited. J. Phys. Chem. A 108, 9979-9997 (2004) [DOI: 10.1021/jp047912y]
2		B. Ruscic, R. E. Pinzon, G. von Laszewski, D. Kodeboyina, A. Burcat, D. Leahy, D. Montoya, and A. F. Wagner, Active Thermochemical Tables: Thermochemistry for the 21^st Century. J. Phys. Conf. Ser. 16, 561-570 (2005) [DOI: 10.1088/1742-6596/16/1/078]
3		B. Ruscic and D. H. Bross, Active Thermochemical Tables (ATcT) values based on ver. 1.124 of the Thermochemical Network, Argonne National Laboratory, Lemont, Illinois 2022; available at ATcT.anl.gov [DOI: 10.17038/CSE/1885923]
4		Y. Ren, L. Zhou, A. Mellouki, V. Daële, M. Idir, S. S. Brown, B. Ruscic, Robert S. Paton, M. R. McGillen, and A. R. Ravishankara, Reactions of NO3 with Aromatic Aldehydes: Gas-Phase Kinetics and Insights into the Mechanism of the Reaction. Atmos. Chem. Phys. 21, 13537-13551 (2021) [DOI: 10.5194/acp2021-228]
5		B. Ruscic and D. H. Bross, Active Thermochemical Tables: The Thermophysical and Thermochemical Properties of Methyl, CH3, and Methylene, CH2, Corrected for Nonrigid Rotor and Anharmonic Oscillator Effects. Mol. Phys. e1969046 (2021) [DOI: 10.1080/00268976.2021.1969046]
6		J. H. Thorpe, J. L. Kilburn, D. Feller, P. B. Changala, D. H. Bross, B. Ruscic, and J. F. Stanton, Elaborated Thermochemical Treatment of HF, CO, N2, and H2O: Insight into HEAT and Its Extensions J. Chem. Phys. 155, 184109 (2021) [DOI: 10.1063/5.0069322]
7		T. L. Nguyen, D. H. Bross, B. Ruscic, G. B. Ellison, and J. F. Stanton, Mechanism, Thermochemistry, and Kinetics of the Reversible Reactions: C2H3 + H2 ⇌ C2H4 + H ⇌ C2H5. Faraday Discuss. , (Advance Article) (2022) [DOI: 10.1039/D1FD00124H]
8		B. Ruscic, Uncertainty Quantification in Thermochemistry, Benchmarking Electronic Structure Computations, and Active Thermochemical Tables. Int. J. Quantum Chem. 114, 1097-1101 (2014) [DOI: 10.1002/qua.24605]
9		B. Ruscic and D. H. Bross, Thermochemistry Computer Aided Chem. Eng. 45, 3-114 (2019) [DOI: 10.1016/B978-0-444-64087-1.00001-2]

Formula

The aggregate state is given in parentheses following the formula, such as: g - gas-phase, cr - crystal, l - liquid, etc.

Uncertainties

The listed uncertainties correspond to estimated 95% confidence limits, as customary in thermochemistry (see, for example, Ruscic [8,9]).
Note that an uncertainty of ± 0.000 kJ/mol indicates that the estimated uncertainty is < ± 0.000₅ kJ/mol.

Website Functionality Credits

The reorganization of the website was developed and implemented by David H. Bross (ANL).
The find function is based on the complete Species Dictionary entries for the appropriate version of the ATcT TN.
The molecule images are rendered by Indigo-depict.
The XYZ renderings are based on Jmol: an open-source Java viewer for chemical structures in 3D. http://www.jmol.org/.

Acknowledgement

This work was supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, Division of Chemical Sciences, Geosciences and Biosciences under Contract No. DE-AC02-06CH11357.