Suvarna Garge (Editor)

Thiazyl trifluoride

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Formula
  
NSF3

Boiling point
  
-27.1 °C

Molar mass
  
103.07 g/mol

Thiazyl trifluoride httpsuploadwikimediaorgwikipediacommonsthu

Thiazyl trifluoride is a chemical compound of nitrogen, sulfur, and fluorine, having the formula NSF3. It exists as a stable, colourless gas, and is an important precursor to other sulfur-nitrogen-fluorine compounds. It has tetrahedral molecular geometry around the sulfur atom, and is regarded to be a prime example of a compound that has a sulfur-nitrogen triple bond.

Contents

Preparation

NSF3 can be synthesised by the fluorination of thiazyl fluoride, NSF, with silver(II) fluoride, AgF2:

NSF + 2 AgF2 → NSF3 + 2 AgF

or by the oxidative decomposition of FC(O)NSF2 by silver(II) fluoride.:

FC(O)NSF2 + 2 AgF2 → NSF3 + 2 AgF + COF2

It is also a product of the oxidation of ammonia by S
2F
10.

Reactions

NSF3 reacts with carbonyl fluoride (COF2) in the presence of hydrogen fluoride to form pentafluorosulfanyl isocyanate (SF5NCO).

References

Thiazyl trifluoride Wikipedia
(Text) CC BY-SA


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