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| Names | |||
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IUPAC name
sulfoxylic difluoride
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| Identifiers | |||
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3D model (JSmol)
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PubChem CID
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| Properties | |||
| SF2 | |||
| Molar mass | 70.062 g/mol | ||
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Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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| Infobox references | |||
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:
The F−S−F bond angle is 98°, and the length of S−F bond is 159 pm. The compound is highly unstable, decomposing 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:
It can also be formed from oxygen difluoride and hydrogen sulfide: