Sulfur difluoride
Chemical compound / From Wikipedia, the free encyclopedia
Sulfur difluoride is an inorganic compound with the chemical formula SF2. It can be generated by the reaction of sulfur dichloride and potassium fluoride or mercury(II) fluoride at low pressures:
- SCl2 + 2 KF → SF2 + 2 KCl
- SCl2 + HgF2 → SF2 + HgCl2
Quick Facts Names, Identifiers ...
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Names | |||
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IUPAC name
sulfoxylic difluoride | |||
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Properties | |||
SF2 | |||
Molar mass | 70.062 g/mol | ||
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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The F−S−F bond angle is 98°, and the length of S−F bond is 159 pm.[1] The compound is highly unstable, dimerising to FSSF3. This unsymmetrical isomer of S2F4 is proposed to arise via insertion of SF2 into the S−F bond of a second molecule SF2:[2]
It can also be formed from oxygen difluoride and hydrogen sulfide:[citation needed]
- OF2 + H2S → SF2 + H2O