Sulfur chloride pentafluoride

• Sulfur chloride pentafluoride
• Sulfur chloride fluoride
• Sulfur pentafluorostyrene chloride
• Pentafluorsulfanylchlorid

Colorless gas

Gaseous

1.541 g · cm -3 ( -60 ° C)

-64 ° C

-17 ° C.

Soluble in most organic solvents

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Sulfur monochloride pentafluoride is a chemical compound selected from the group of fluorides.

Production and representation

Sulfur monochloride pentafluoride can be obtained by reaction of sulfur tetrafluoride with the chlorine and potassium fluoride or cesium fluoride at 175 ° C.

Also possible representation is by reaction of sulfur tetrafluoride with chlorine fluoride at 380 ° C.

Because cesium acts as a catalyst, the former reaction may be carried out at lower temperatures.

Properties

Sulfur monochloride pentafluoride is a colorless gas, and a strong oxidizing agent. It is much more reactive than sulfur hexafluoride, as the S- Cl bond is weaker than the SF bonds. It therefore reacts on the one hand by radical reaction mechanisms and, on the other hand, much lighter than sulfur hexafluoride hydrolyzed.

When heated to about 400 ° C or under UV light it decomposes over SF5 radicals sulfur tetrafluoride and sulfur hexafluoride.

With hydrogen and sulfur monochloride irradiation pentafluoride reacts to the extremely toxic disulphur decafluoride.

Use

Sulfur monochloride pentafluoride may be used for the introduction of SF5 groups.

It is used in the preparative chemistry also for the preparation of organic compounds with carbon-sulfur double and triple bonds.