1,3-Difluoro-trisulfane-1,1-difluoride

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1,3-Difluoro-trisulfane-1,1-difluoride
Names
IUPAC name
(Trifluoro-λ4-sulfanyl)sulfanyl thiohypofluorite
Identifiers
3D model (
JSmol
)
  • InChI=1S/F4S3/c1-5-6-7(2,3)4
    Key: YHBRMHFGIJPWAT-UHFFFAOYSA-N
  • FSSS(F)(F)F
Properties
F4S3
Molar mass 172.17 g·mol−1
Melting point −62 °C (−80 °F; 211 K)
Boiling point 94 °C (201 °F; 367 K)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

1,3-Difluoro-trisulfane-1,1-difluoride is an inorganic molecular substance with the structure SF3SSF, consisting of sulfur in a low oxidation state with fluorine. The compound consists of a chain of three sulfur atoms, with three fluorine atoms bonded to the sulfur on one end and the fourth fluorine bonded to the sulfur on the other end. It has a melting point of -62 °C and a boiling point of 94 °C. As a gas, it is unstable and breaks up to form SSF2 and SF4.[1]

SF3SSF is produced by the condensation of sulfur difluoride and an isomer of SSF2.[2] The reaction S3F4 ⇌ SSF2 + SF2 uses 6 kJ/mol.[3]

Possible isomers of its S3F4 molecular formula include FSSF2SF, which has a spontaneous fluorine migration to yield F2SSSF2, which in turn spontaneously fragments to give SF2 and SSF2.[4]

References

  1. doi:10.1002/zaac.19845140721
    .
  2. doi:10.1039/IC9848100137
    .
  3. doi:10.1002/zaac.19855301120
    .
  4. doi:10.1016/0166-1280(89)87055-1
    .
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