174282-34-9

Basic information

• Product Name: bis(bis(fluorosulfonyl)amino)sulfur
• Synonyms: bis(bis(fluorosulfonyl)amino)sulfur
• CAS NO: 174282-34-9
• Molecular Weight: 392.332
• Mol File: 174282-34-9.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: bis(bis(fluorosulfonyl)amino)sulfur(CAS DataBase Reference)
• NIST Chemistry Reference: bis(bis(fluorosulfonyl)amino)sulfur(174282-34-9)
• EPA Substance Registry System: bis(bis(fluorosulfonyl)amino)sulfur(174282-34-9)

Safety Data

• Hazardous Substances Data: 174282-34-9(Hazardous Substances Data)

Upstream product

• 13709-32-5 bis(fluorosulfuryl) peroxide 
• 127770-66-5 tetrasulphur tetranitride 

Relevant articles and documents

Acyclic Sulfur - Nitrogen Compounds

The syntheses of three acyclic (fluorosulfonyl)- or ((trifluoromethyl)sulfonyl)-nitrogen derivatives and their crystal and molecular structures are reported. The structures of bis((trifluoromethyl)sulfonyl)amine (1; (CF3- SO7NH) and the corresponding anion in magnesium hexaaquo bis((trifluoromethyl)sulfonyl)amide dihydrate (2; [Mg(H2O)6][(CF3SO2) 2N]2·2H2O) shed some light on the observed high gas-phase acidity of (CF3SO2)2NH. Extensive electron delocalization in the anion [(CF3SO)2N]- from planar, sp2-hybridized nitrogen into 3d orbitals of sulfur results in a noticeable shortening of the S-N bond on deprotonation. Similar electron delocalization is observed for the third compound, bis(bis(fluorosulfonyl)amino)sulfur (3; (FSO2NSN(SO2F)2), which features planar nitrogens with nearly six equidistant S-N bonds and extremely short S-O and S-F bonds. Compounds 2 and 3 have not been reported previously. Their unexpected, accidental formation and their characterization will be discussed. Compound 1 crystallizes in the space group Pccn (No. 56) with a = 16.404(3) A, b = 5.535(1) A, c = 9.557(2) A, and Z = 4. Compound 2 crystallizes in the space group P21ln (No. 14) with a = 6.400(1) A, b = 14.300(1) A, c = 14.421(1) A, β= 97.45(1)°, and Z = 2. Compound 3 crystallizes in the space group P21lc (No. 14) with a = 12.762(1) A, b = 6.744(1) A, c = 13.627(1) A, β= 91.42(1)°, and Z = 4.