Selenoyl fluoride

Selenoyl fluoride
Identifiers
CAS number 14984-81-7 Y
Properties
Molecular formula SeO2F2
Molar mass 148.95 g/mol
Appearance Gas.
Melting point

-99.5 °C[1]
Boiling point

-8.4 °C[2]
 Y (verify) (what is: Y/N?)
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)
Infobox references

Selenoyl fluoride, selenoyl difluoride, selenium oxyfluoride, or selenium dioxydifluoride is a chemical compound with the formula SeO2F2.

Contents

Structure

The shape of the molecule is a distorted tetrahedron with the O-Se-O angle being 126.2°, the O-Se-F angle being 108.0° and F-Se-F being 94.1°.[3] The Se-F bond length is 1.685 Å and the selenium to oxygen bond is 1.575 Å long.[4]

Formation

Selenoyl fluoride can be formed by the action of warm fluorosulfonic acid on barium selenate[5] or selenic acid. SeO3 + SeF4 can give this gas along with other oxyfluorides.

Reactions

Selenoyl fluoride reacting with xenon difluoride gives FXeOSeF5.[6]

See also

References

  1. ^ CRC Handbook of Chemistry and Physics
  2. ^ Seppelt, K. “Selenoyl difluoride” Inorganic Syntheses, 1980, volume XX, pp. 36-38. ISBN 0-471-07715-1.
  3. ^ Wai-Kee Li, Gong-du Zhou, Thomas C. W. Mak Advanced structural inorganic chemistry page 651 2008 ISBN 0199216940
  4. ^ Kolbjørn Hagen, Virginia R. Cross and Kenneth Hedberg "The molecular structure of selenonyl fluoride, SeO2F2, and sulfuryl fluoride, SO2F2, as determined by gas-phase electron diffraction" Journal of Molecular Structure 1978 volume 44 issue 2 page 187 doi:10.1016/0022-2860(78)87027-6
  5. ^ Advanced Inorganic Chemistry A Comprehensive Text Cotton and Wilkinson
  6. ^ http://www.scribd.com/doc/30122309/Noble-Gas-Compounds