Sulfuryl chloride fluoride

Sulfuryl chloride fluoride
Names
	IUPAC name Sulfuryl chloride fluoride
	Other names Sulfuryl fluoride chloride
Identifiers
CAS Number	13637-84-8 ;
3D model (JSmol)	Interactive image;
ChEBI	CHEBI:39445 ;
ChemSpider	24370 ;
ECHA InfoCard	100.033.737
PubChem CID	26159;
RTECS number	WT4900000;
CompTox Dashboard (EPA)	DTXSID0065567 ;
	InChI InChI=1S/ClFO2S/c1-5(2,3)4 Key: IXPAAHZTOUOJJM-UHFFFAOYSA-N ; InChI=1/ClFO2S/c1-5(2,3)4 Key: IXPAAHZTOUOJJM-UHFFFAOYAK;
	SMILES ClS(F)(=O)=O;
Properties
Chemical formula	ClFO2S
Molar mass	118.52 g/mol
Appearance	colourless gas
Density	1.623 g/cm3 at 0 °C
Melting point	−124.7 °C (−192.5 °F; 148.5 K)
Boiling point	7.1 °C (44.8 °F; 280.2 K)
Solubility in water	hydrolyses
Solubility in other solvents	SO2 and ether
Structure
Coordination geometry	tetrahedral
Hazards
Main hazards	moderately toxic, corrosive
Safety data sheet	"External MSDS"
R-phrases (outdated)	R14 R34[1]
S-phrases (outdated)	S24/25 S26 S27 S28 S36/37/39 S38 S45[1]
Related compounds
Related compounds	SO2Cl2,; SO2F2 ; ClSO2(NCO)
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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	Infobox references

Sulfuryl chloride fluoride is the chemical compound with the formula SO₂ClF. It is a colorless, easily condensed gas. It is a tetrahedral molecule.

Liquified sulfuryl chloride fluoride is employed as a solvent for highly oxidizing compounds.[2]

Preparation

The laboratory-scale synthesis begins with the preparation of potassium fluorosulfite:[3]

SO₂ + KF → KSO₂F

This salt is then chlorinated to give sulfuryl chloride fluoride[4]

KSO₂F + Cl₂ → SO₂ClF + KCl

Further heating (180 °C) of potassium fluorosulfite with the sulfuryl chloride fluoride gives sulfuryl fluoride.

KSO₂F + SO₂ClF → SO₂F₂ + KCl + SO₂

Alternatively, sulfuryl chloride fluoride can be prepared without using gases as starting materials by treating sulfuryl chloride with ammonium fluoride or potassium fluoride in trifluoroacetic acid.[5]

SO₂Cl₂ + NH₄F → SO₂ClF + NH₄Cl

References

"Sulfuryl chloride fluoride, distilled, 99%". Archived from the original on November 17, 2015. Retrieved February 19, 2013.
Koppe, Karsten; Bilir, Vural; Frohn, Hermann-J.; Mercier, Hélène P. A.; Schrobilgen, Gary J. (2007). "Syntheses, Solution Multi-NMR Characterization, and Reactivities of [C₆F₅Xe]+Salts of Weakly Coordinating Borate Anions, [BY4]-(Y = CF₃, C₆F₅, CN, or OTeF₅)". Inorganic Chemistry. 46 (22): 9425–9437. doi:10.1021/ic7010138. PMID 17902647.
Seel, F.; Czerepinski, Ralph G.; Cady, George H. (1967). Potassium Fluorosulfite. Inorg. Synth. Inorganic Syntheses. 9. pp. 113–115. doi:10.1002/9780470132401.ch29. ISBN 978-0-470-13240-1.
Seel, F.; Duncan, Leonard C.; Czerepinski, Ralph G.; Cady, George H. (1967). Sulfuryl Chloride Fluoride and Sufluryl Fluoride. Inorg. Synth. Inorganic Syntheses. 9. pp. 111–113. doi:10.1002/9780470132401.ch28. ISBN 9780470132401.
Prakash Reddy, V.; Bellew, Donald R.; Prakash, G. K. Surya (1992). "A Convenient Preparation of Sulfuryl Chloride Fluoride". Journal of Fluorine Chemistry. 56 (2): 195–197. doi:10.1016/S0022-1139(00)81102-1.

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[fscimage-1] "Sulfuryl chloride fluoride, distilled, 99%". Archived from the original on November 17, 2015. Retrieved February 19, 2013.

[2] Koppe, Karsten; Bilir, Vural; Frohn, Hermann-J.; Mercier, Hélène P. A.; Schrobilgen, Gary J. (2007). "Syntheses, Solution Multi-NMR Characterization, and Reactivities of [C₆F₅Xe]+Salts of Weakly Coordinating Borate Anions, [BY4]-(Y = CF₃, C₆F₅, CN, or OTeF₅)". Inorganic Chemistry. 46 (22): 9425–9437. doi:10.1021/ic7010138. PMID 17902647.

[3] Seel, F.; Czerepinski, Ralph G.; Cady, George H. (1967). Potassium Fluorosulfite. Inorg. Synth. Inorganic Syntheses. 9. pp. 113–115. doi:10.1002/9780470132401.ch29. ISBN 978-0-470-13240-1.

[4] Seel, F.; Duncan, Leonard C.; Czerepinski, Ralph G.; Cady, George H. (1967). Sulfuryl Chloride Fluoride and Sufluryl Fluoride. Inorg. Synth. Inorganic Syntheses. 9. pp. 111–113. doi:10.1002/9780470132401.ch28. ISBN 9780470132401.

[5] Prakash Reddy, V.; Bellew, Donald R.; Prakash, G. K. Surya (1992). "A Convenient Preparation of Sulfuryl Chloride Fluoride". Journal of Fluorine Chemistry. 56 (2): 195–197. doi:10.1016/S0022-1139(00)81102-1.