Selected ATcT [1, 2] enthalpy of formation based on version 1.148 of the Thermochemical Network [3]

This version of ATcT results[3] was generated by additional expansion of version 1.140 to include species relevant to a recent study of the role of atmospheric methanediol[4].

Iodotrifluoromethane

Formula: CF3I (g)

CAS RN: 2314-97-8

ATcT ID: 2314-97-8*0

SMILES: C(F)(F)(F)I

InChI: InChI=1S/CF3I/c2-1(3,4)5

InChIKey: VPAYJEUHKVESSD-UHFFFAOYSA-N

Hills Formula: C1F3I1

2D Image:

Aliases: CF3I; Iodotrifluoromethane; Trifluoro(iodo)methane; Monoiodotrifluoromethane; Trifluoroiodomethane; Trifluoromonoiodomethane; Trifluoromethyl iodide; Methane iodide trifluoride; Methane trifluoride iodide; Methane monoiodide trifluoride; Methane trifluoride monoiodide; Carbon iodide trifluoride; Carbon trifluoride iodide; Carbon monoiodide trifluoride; Carbon trifluoride monoiodide; Iodotrifluorocarbon; Monoiodotrifluorocarbon; Trifluoroiodocarbon; Trifluoromonoiodocarbon; Perfluoromethyl iodide; Iodofluoroform; Freon 13I1; FC 13I1; R 13I1

Relative Molecular Mass: 195.91038 ± 0.00080

Δ_fH°(0 K)	Δ_fH°(298.15 K)	Uncertainty	Units
-583.27	-589.15	± 0.45	kJ/mol

3D Image of CF3I (g)

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Top contributors to the provenance of Δ_fH° of CF3I (g)

The 20 contributors listed below account only for 63.5% of the provenance of Δ_fH° of CF3I (g).
A total of 143 contributors would be needed to account for 90% of the provenance.

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
21.9	6146.1	CF3Br (g) + I2 (g) → CF3I (g) + IBr (g)	Δ_rH°(298.15 K) = 9.55 ± 0.06 kcal/mol	Lord 1967, as quoted by Cox 1970
7.2	6369.9	CF3CF3 (g) → 2 C (g) + 6 F (g)	Δ_rH°(0 K) = 769.97 ± 0.45 kcal/mol	Karton 2017
6.2	6144.1	CHF3 (g) + I2 (g) → CF3I (g) + HI (g)	Δ_rH°(298.15 K) = 17.10 ± 0.34 kcal/mol	Goy 1967, as quoted by Cox 1970
4.4	6373.2	CF3CF3 (g) + Br2 (g) → 2 CF3Br (g)	Δ_rG°(670.8 K) = -1.58 ± 0.62 kJ/mol	Coomber 1967a, 3rd Law
2.5	6370.1	CF3CF3 (g) → 2 C (g) + 3 F2 (g)	Δ_rH°(0 K) = 2754.640 ± 3.2 kJ/mol	Nagy 2014
2.1	6138.1	CF3Br (g) + Cl2 (g) → CF3Cl (g) + BrCl (g)	Δ_rH°(298.15 K) = -10.69 ± 0.30 kcal/mol	Coomber 1967b, as quoted by Cox 1970
2.0	6140.3	CHF3 (g) + Br2 (g) → CF3Br (g) + HBr (g)	Δ_rH°(298.15 K) = -4.59 ± 0.25 (×1.576) kcal/mol	Coomber 1967, as quoted by Cox 1970
2.0	6316.2	CF3I (g) → CF3 (g) + I (g)	Δ_rH°(298.15 K) = 54.4 ± 0.4 kcal/mol	Skorobogatov 1991
1.6	6300.1	CF3 (g) → C (g) + 3/2 F2 (g)	Δ_rH°(0 K) = 1176.44 ± 1.6 kJ/mol	Csontos 2010
1.4	6306.1	CF3Br (g) → [CF3]+ (g) + Br (g)	Δ_rH°(0 K) = 12.087 ± 0.003 eV	Bodi 2011
1.4	6374.9	CF2CF2 (g) → 2 C (g) + 4 F (g)	Δ_rH°(0 K) = 573.98 ± 0.50 kcal/mol	Karton 2017
1.4	6295.11	CF3 (g) → C (g) + 3 F (g)	Δ_rH°(0 K) = 336.75 ± 0.4 kcal/mol	Feller 2008
1.3	6381.1	CF3CF3 (g) → CF2CF2 (g) + 2 F (g)	Δ_rH°(0 K) = 195.99 ± 0.50 (×1.044) kcal/mol	Karton 2017
1.2	6280.4	CF4 (g) + CF2Br2 (g) → 2 CF3Br (g)	Δ_rH°(0 K) = 3.35 ± 1.0 kcal/mol	Ruscic G4
1.0	6139.1	CF3Cl (g) + Br2 (g) → CF3Br (g) + BrCl (g)	Δ_rH°(298.15 K) = 10.49 ± 0.40 (×1.044) kcal/mol	Coomber 1967b, as quoted by Cox 1970
1.0	6280.3	CF4 (g) + CF2Br2 (g) → 2 CF3Br (g)	Δ_rH°(0 K) = 3.07 ± 1.1 kcal/mol	Ruscic G3X
1.0	6295.12	CF3 (g) → C (g) + 3 F (g)	Δ_rH°(0 K) = 1408.3 ± 2.0 kJ/mol	Ganyecz 2018, est unc
1.0	6330.9	CF3 (g) → CF2 (g) + F (g)	Δ_rH°(0 K) = 348.56 ± 1.6 kJ/mol	Csontos 2010
1.0	6145.1	CF3Cl (g) + I2 (g) → CF3I (g) + ICl (g)	Δ_rH°(298.15 K) = 17.27 ± 0.26 (×2.768) kcal/mol	Lord 1967, as quoted by Cox 1970
0.9	6315.2	CF3Br (g) → CF3 (g) + Br (g)	Δ_rH°(298.15 K) = 70.8 ± 0.2 (×1.445) kcal/mol	Ruscic 1998, Skorobogatov 1996, Dymov 1991

Top 10 species with enthalpies of formation correlated to the Δ_fH° of CF3I (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
82.9	Bromotrifluoromethane	CF3Br (g)	-638.68	-650.80	± 0.40	kJ/mol	148.9099 ± 0.0013	75-63-8*0
69.9	Trifluoromethylium	[CF3]+ (g)	409.74	406.53	± 0.42	kJ/mol	69.00536 ± 0.00080	18851-76-8*0
63.8	Hexafluoroethane	CF3CF3 (g)	-1334.04	-1342.34	± 0.82	kJ/mol	138.0118 ± 0.0016	76-16-4*0
55.2	Tetrafluoroethylene	CF2CF2 (g)	-670.69	-674.09	± 0.48	kJ/mol	100.0150 ± 0.0016	116-14-3*0
48.9	Trifluoromethyl	CF3 (g)	-464.84	-467.64	± 0.43	kJ/mol	69.00591 ± 0.00080	2264-21-3*0
29.5	1,1-Difluoroethane	CH3CHF2 (g)	-488.96	-502.69	± 0.53	kJ/mol	66.0500 ± 0.0016	75-37-6*0
25.6	Chlorotrifluoromethane	CF3Cl (g)	-704.29	-709.40	± 0.56	kJ/mol	104.4586 ± 0.0012	75-72-9*0
23.7	Fluoroform	CHF3 (g)	-689.28	-696.23	± 0.38	kJ/mol	70.01385 ± 0.00080	75-46-7*0
22.2	Fluoroform	CHF3 (l)		-704.69	± 0.41	kJ/mol	70.01385 ± 0.00080	75-46-7*590
17.4	Tetrafluoromethane	CF4 (g)	-927.65	-933.62	± 0.23	kJ/mol	88.00431 ± 0.00080	75-73-0*0

Most Influential reactions involving CF3I (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
0.926	6146.1	CF3Br (g) + I2 (g) → CF3I (g) + IBr (g)	Δ_rH°(298.15 K) = 9.55 ± 0.06 kcal/mol	Lord 1967, as quoted by Cox 1970
0.130	6144.1	CHF3 (g) + I2 (g) → CF3I (g) + HI (g)	Δ_rH°(298.15 K) = 17.10 ± 0.34 kcal/mol	Goy 1967, as quoted by Cox 1970
0.115	1393.2	CF3I (g) + OH (g) → HOI (g) + CF3 (g)	Δ_rH°(320 K) = 22.6 ± 8.1 kJ/mol	Gilles 2000, Marshall 2008
0.069	6316.2	CF3I (g) → CF3 (g) + I (g)	Δ_rH°(298.15 K) = 54.4 ± 0.4 kcal/mol	Skorobogatov 1991
0.042	6145.1	CF3Cl (g) + I2 (g) → CF3I (g) + ICl (g)	Δ_rH°(298.15 K) = 17.27 ± 0.26 (×2.768) kcal/mol	Lord 1967, as quoted by Cox 1970
0.034	6307.1	CF3I (g) → [CF3]+ (g) + I (g)	Δ_rH°(0 K) = 11.384 ± 0.005 (×3.748) eV	Asher 1997
0.009	6316.4	CF3I (g) → CF3 (g) + I (g)	Δ_rH°(0 K) = 55.0 ± 1.0 (×1.091) kcal/mol	Ruscic 1998, Kumaran 1995
0.007	6316.3	CF3I (g) → CF3 (g) + I (g)	Δ_rH°(0 K) = 52.7 ± 1.0 (×1.242) kcal/mol	Zaslonko 1990
0.002	6316.5	CF3I (g) → CF3 (g) + I (g)	Δ_rH°(0 K) = 54.2 ± 2.0 kcal/mol	Skorobogatov 2011
0.002	6311.1	CF3I (g) + I (g) → CF3 (g) + I2 (g)	Δ_rH°(298.15 K) = 17.1 ± 2.0 kcal/mol	Syverud 1969, Goy 1967, Laurence 1967, Boyd 1963
0.002	6313.1	CF3I (g) + Br (g) → CF3 (g) + IBr (g)	Δ_rH°(298.15 K) = 9.8 ± 1.1 (×2.089) kcal/mol	Ruscic 1998, Okafo 1975, Okafo 1975a

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. 1.148 of the Thermochemical Network (2023); available at ATcT.anl.gov
4		T. L. Nguyen, J. Peeters, J.-F. Müller, A. Perera, D. H. Bross, B. Ruscic, and J. F. Stanton, Methanediol from Cloud-Processed Formaldehyde is Only a Minor Source of Atmospheric Formic Acid Natl. Acad. Sci. 120, e2304650120/1-8 (2023) [DOI: 10.1073/pnas.2304650120]
5		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]
6		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 [5] and Ruscic and Bross[6]).
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.