:Sulfuryl chloride fluoride
{{chembox
| Verifiedfields = changed
| Watchedfields = changed
| verifiedrevid = 470482501
| Name = Sulfuryl chloride fluoride
| ImageFile1 = Sulfuryl-chloride-fluoride-2D.png
| ImageName1 = Structure of sulfuryl chloride fluoride
| ImageFileL2 = Sulfuryl-chloride-fluoride-from-xtal-3D-balls.png
| ImageFileR2 = Sulfuryl-chloride-fluoride-from-xtal-3D-SF.png
| IUPACName = Sulfuryl chloride fluoride
| OtherNames = Sulfuryl fluoride chloride, TL-212
|Section1={{Chembox Identifiers
| ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}}
| ChemSpiderID = 24370
| EC_number = 237-126-2
| Gmelin = 1993
| PubChem = 26159
| InChI = 1/ClFO2S/c1-5(2,3)4
| InChIKey = IXPAAHZTOUOJJM-UHFFFAOYAK
| ChEBI_Ref = {{ebicite|correct|EBI}}
| ChEBI = 39445
| SMILES = ClS(F)(=O)=O
| StdInChI_Ref = {{stdinchicite|correct|chemspider}}
| StdInChI = 1S/ClFO2S/c1-5(2,3)4
| StdInChIKey_Ref = {{stdinchicite|correct|chemspider}}
| StdInChIKey = IXPAAHZTOUOJJM-UHFFFAOYSA-N
| CASNo_Ref = {{cascite|correct|CAS}}
| CASNo = 13637-84-8
| UNII_Ref = {{fdacite|correct|FDA}}
| UNII = Y7TT1LZ9SD
| RTECS = WT4900000
}}
|Section2={{Chembox Properties
| Formula = {{chem2|SO2ClF}}
| MolarMass = 118.52 g/mol
| Appearance = colourless gas
| Density = 1.623 g/cm3 at 0 °C
| Solubility = hydrolyses
| Solvent = other solvents
| SolubleOther = SO2 and ether
| MeltingPtC = −124.7
| BoilingPtC = 7.1
| Viscosity =
}}
|Section3={{Chembox Structure
| Coordination = tetrahedral
| Dipole =
}}
|Section7={{Chembox Hazards
| ExternalSDS =[https://fscimage.fishersci.com/msds/88306.htm "External MSDS"]
| MainHazards = moderately toxic, corrosive
| GHSPictograms = {{GHS05}}{{GHS06}}
| GHSSignalWord = Danger
| HPhrases = {{H-phrases|301|311|314|331}}
| PPhrases = {{P-phrases|260|261|264|270|271|280|301+310|301+330+331|302+352|303+361+353|304+340|305+351+338|310|311|312|321|322|330|361|363|403+233|405|501}}
}}
|Section8={{Chembox Related
| OtherCompounds = SO2Cl2,
SO2F2
ClSO2(NCO)
}}
}}
Sulfuryl chloride fluoride is a chemical compound with the formula {{chem2|SO2ClF|auto=1}}. 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.{{cite journal |doi=10.1021/ic7010138|title=Syntheses, Solution Multi-NMR Characterization, and Reactivities of [C6F5Xe]+Salts of Weakly Coordinating Borate Anions, [BY4]-(Y = CF3, C6F5, CN, or OTeF5)|year =2007|last1=Koppe|first1 =Karsten|last2 =Bilir|first2 =Vural|last3=Frohn|first3=Hermann-J.|last4=Mercier|first4=Hélène P. A.|last5=Schrobilgen|first5=Gary J.|journal=Inorganic Chemistry|volume=46|issue=22|pages=9425–9437|pmid=17902647}}
Preparation
The laboratory-scale synthesis begins with the preparation of potassium fluorosulfite:{{cite book | doi = 10.1002/9780470132401.ch29 | journal = Inorg. Synth. | author = Seel, F. | year = 1967 | volume = 9 | pages = 113–115 | last2 = Czerepinski | first2 = Ralph G. | last3 = Cady | first3 = George H. | title = Inorganic Syntheses | chapter = Potassium Fluorosulfite: (Potassium Fluorosulfinate) | isbn = 978-0-470-13240-1}}
This salt is then chlorinated to give sulfuryl chloride fluoride{{cite book | doi = 10.1002/9780470132401.ch28 | journal = Inorg. Synth. | author = Seel, F. | volume = 9 | year = 1967 | pages = 111–113 | last2 = Duncan | first2 = Leonard C. | last3 = Czerepinski | first3 = Ralph G. | last4 = Cady | first4 = George H. | title = Inorganic Syntheses | chapter = Sulfuryl Chloride Fluoride and Sulfuryl Fluoride | isbn = 9780470132401}}
:{{chem2|KSO2F + Cl2 → SO2ClF + KCl}}
Further heating (180 °C) of potassium fluorosulfite with the sulfuryl chloride fluoride gives sulfuryl fluoride.
:{{chem2|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.{{cite journal | doi = 10.1016/S0022-1139(00)81102-1| title = A Convenient Preparation of Sulfuryl Chloride Fluoride| year = 1992| last1 = Prakash Reddy| first1 = V.| last2 = Bellew| first2 = Donald R.| last3 = Prakash| first3 = G. K. Surya| journal = Journal of Fluorine Chemistry| volume = 56| issue = 2| pages = 195–197}}