Selected ATcT [1, 2] enthalpy of formation based on version 1.176 of the Thermochemical Network [3]

This version of ATcT results[3] was generated by additional expansion of version 1.172 to include species related to Criegee intermediates that are involved in several ongoing studies[4].

Nitrosyl fluoride

Formula: FNO (g)

CAS RN: 7789-25-5

ATcT ID: 7789-25-5*0

SMILES: FN=O

InChI: InChI=1S/FNO/c1-2-3

InChIKey: ZEIYBPGWHWECHV-UHFFFAOYSA-N

Hills Formula: F1N1O1

2D Image:

Aliases: Nitrosyl fluoride; Fluoronitrosyl; Fluorine nitride oxide; Nitrogen oxide fluoride; Nitrogen oxyfluoride; Nitrosofluoride; Nitrosonium fluoride; Nitrogen monoxide fluoride; Nitrogen fluoride monoxide; Nitrogen monooxide fluoride; Nitrogen fluoride monooxide; Nitrogen monoxide monofluoride; Nitrogen monofluoride monoxide; Nitrogen monooxide monofluoride; Nitrogen monofluoride monooxide; ONF; FNO

Relative Molecular Mass: 49.00454 ± 0.00031

Δ_fH°(0 K)	Δ_fH°(298.15 K)	Uncertainty	Units
-85.48	-87.85	± 0.76	kJ/mol

3D Image of FNO (g)

spin ON spin OFF

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

The 9 contributors listed below account for 92.5% of the provenance of Δ_fH° of FNO (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
39.6	2135.1	1/2 F2 (g) + 1/2 N2 (g) + 1/2 O2 (g) → FNO (g)	Δ_rH°(0 K) = -84.7 ± 1.2 kJ/mol	Szakacs 2011
26.6	2134.5	FNO (g) → F (g) + N (g) + O (g)	Δ_rH°(0 K) = 210.16 ± 0.35 kcal/mol	Karton 2017
6.3	2134.7	FNO (g) → F (g) + N (g) + O (g)	Δ_rH°(0 K) = 880.2 ± 3.0 kJ/mol	Klopper 2010a
4.0	2138.3	FNO (g) + 1/2 Cl2 (g) → ClNO (g) + 1/2 F2 (g)	Δ_rH°(0 K) = 34.27 ± 0.9 kcal/mol	Ruscic W1RO
4.0	2137.3	FNO (g) + Cl (g) → ClNO (g) + F (g)	Δ_rH°(0 K) = 24.09 ± 0.9 kcal/mol	Ruscic W1RO
3.2	2138.2	FNO (g) + 1/2 Cl2 (g) → ClNO (g) + 1/2 F2 (g)	Δ_rH°(0 K) = 34.32 ± 1.0 kcal/mol	Ruscic G4
3.2	2137.2	FNO (g) + Cl (g) → ClNO (g) + F (g)	Δ_rH°(0 K) = 24.11 ± 1.0 kcal/mol	Ruscic G4
2.6	2138.1	FNO (g) + 1/2 Cl2 (g) → ClNO (g) + 1/2 F2 (g)	Δ_rH°(0 K) = 34.03 ± 1.1 kcal/mol	Ruscic G3X
2.6	2137.1	FNO (g) + Cl (g) → ClNO (g) + F (g)	Δ_rH°(0 K) = 24.02 ± 1.1 kcal/mol	Ruscic G3X

Top 10 species with enthalpies of formation correlated to the Δ_fH° of FNO (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
2.2	Nitrosyl chloride	ClNO (g)	54.461	52.559	± 0.067	kJ/mol	65.45884 ± 0.00095	2696-92-6*0
2.1	Nitrogen dioxide	ONO (g)	36.866	34.059	± 0.064	kJ/mol	46.00554 ± 0.00060	10102-44-0*0
2.1	Nitric oxide	NO (g)	90.627	91.131	± 0.064	kJ/mol	30.00614 ± 0.00031	10102-43-9*0
2.1	Nitrosyl ion	[NO]+ (g)	984.494	984.489	± 0.064	kJ/mol	30.00559 ± 0.00031	14452-93-8*0
2.0	Dinitrogen tetraoxide	O2NNO2 (g)	20.17	10.88	± 0.14	kJ/mol	92.0111 ± 0.0012	10544-72-6*0
2.0	Dioxohydrazine	ONNO (g)	172.91	171.14	± 0.14	kJ/mol	60.01228 ± 0.00062	16824-89-8*0
2.0	Dioxohydrazine	ONNO (g, cis)	172.91	171.14	± 0.14	kJ/mol	60.01228 ± 0.00062	16824-89-8*2
1.9	Nitrogen sesquioxide	ONN(O)O (g)	90.73	86.17	± 0.15	kJ/mol	76.01168 ± 0.00091	10544-73-7*0
1.7	Nitrous acid	HONO (g)	-72.986	-78.643	± 0.078	kJ/mol	47.01348 ± 0.00061	7782-77-6*0
1.7	Nitrous acid	HONO (g, trans)	-72.986	-79.130	± 0.078	kJ/mol	47.01348 ± 0.00061	7782-77-6*1

Most Influential reactions involving FNO (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
0.397	2135.1	1/2 F2 (g) + 1/2 N2 (g) + 1/2 O2 (g) → FNO (g)	Δ_rH°(0 K) = -84.7 ± 1.2 kJ/mol	Szakacs 2011
0.266	2134.5	FNO (g) → F (g) + N (g) + O (g)	Δ_rH°(0 K) = 210.16 ± 0.35 kcal/mol	Karton 2017
0.063	2134.7	FNO (g) → F (g) + N (g) + O (g)	Δ_rH°(0 K) = 880.2 ± 3.0 kJ/mol	Klopper 2010a
0.040	2138.3	FNO (g) + 1/2 Cl2 (g) → ClNO (g) + 1/2 F2 (g)	Δ_rH°(0 K) = 34.27 ± 0.9 kcal/mol	Ruscic W1RO
0.040	2137.3	FNO (g) + Cl (g) → ClNO (g) + F (g)	Δ_rH°(0 K) = 24.09 ± 0.9 kcal/mol	Ruscic W1RO
0.032	2138.2	FNO (g) + 1/2 Cl2 (g) → ClNO (g) + 1/2 F2 (g)	Δ_rH°(0 K) = 34.32 ± 1.0 kcal/mol	Ruscic G4
0.032	2137.2	FNO (g) + Cl (g) → ClNO (g) + F (g)	Δ_rH°(0 K) = 24.11 ± 1.0 kcal/mol	Ruscic G4
0.027	2138.1	FNO (g) + 1/2 Cl2 (g) → ClNO (g) + 1/2 F2 (g)	Δ_rH°(0 K) = 34.03 ± 1.1 kcal/mol	Ruscic G3X
0.027	2137.1	FNO (g) + Cl (g) → ClNO (g) + F (g)	Δ_rH°(0 K) = 24.02 ± 1.1 kcal/mol	Ruscic G3X
0.014	2137.4	FNO (g) + Cl (g) → ClNO (g) + F (g)	Δ_rH°(0 K) = 23.06 ± 1.5 kcal/mol	Martin 1994, est unc
0.014	2134.4	FNO (g) → F (g) + N (g) + O (g)	Δ_rH°(0 K) = 209.45 ± 1.50 kcal/mol	Ruscic W1RO
0.012	2134.2	FNO (g) → F (g) + N (g) + O (g)	Δ_rH°(0 K) = 210.63 ± 1.60 kcal/mol	Ruscic G4
0.012	2134.3	FNO (g) → F (g) + N (g) + O (g)	Δ_rH°(0 K) = 210.30 ± 1.60 kcal/mol	Ruscic CBS-n
0.011	2134.1	FNO (g) → F (g) + N (g) + O (g)	Δ_rH°(0 K) = 210.70 ± 1.72 kcal/mol	Ruscic G3X
0.008	2134.6	FNO (g) → F (g) + N (g) + O (g)	Δ_rH°(0 K) = 208.51 ± 2.0 kcal/mol	Martin 1994, note unc2

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. 1.176 of the Thermochemical Network (2024); available at ATcT.anl.gov
4		T. L. Nguyen et al, ongoing studies (2024)
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.