Agave Americana

by | Mar 19, 2018 | Agave Americana

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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

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

References

  1. ^ Johnson, D. R.; Powell, F. X. (1969). "Microwave Spectrum and Structure of Sulfur Difluoride". Science. 164 (3882): 950–1. Bibcode:1969Sci...164..950J. doi:10.1126/science.164.3882.950. PMID 17775599. S2CID 46046291.
  2. ^ Greenwood, Norman N.; Earnshaw, Alan (1997). Chemistry of the Elements (2nd ed.). Butterworth-Heinemann. ISBN 978-0-08-037941-8.
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