Sulfuryl chloride fluoride

Sulfuryl chloride fluoride

Names
IUPAC name Sulfuryl chloride fluoride
Other names Sulfuryl fluoride chloride
Identifiers
CAS Number	13637-84-8 N
ChEBI	CHEBI:39445 Y
ChemSpider	24370 Y
Jmol 3D model	Interactive image
PubChem	26159
RTECS number	WT4900000
InChI InChI=1S/ClFO2S/c1-5(2,3)4 Y Key: IXPAAHZTOUOJJM-UHFFFAOYSA-N Y 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
Vapor pressure	{{{value}}}
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).
N verify (what is YN ?)
Infobox references

Sulfuryl chloride fluoride is the chemical compound with the formula SO₂ClF. It is employed as a solvent for highly oxidizing compounds.

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

SO₂ + KF → KSO₂F

This salt is then chlorinated to give sulfuryl chloride fluoride

KSO₂F + Cl₂ → SO₂ClF + KCl

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

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.

SO₂Cl₂ + NH₄F → SO₂ClF + NH₄Cl