Jump to content

Hassium tetroxide

From Wikipedia, the free encyclopedia
Hassium tetroxide
Stick model hassium tetroxide
Names
Preferred IUPAC name
Hassium tetraoxide
Systematic IUPAC name
Tetraoxohassium
Other names
Hassium(VIII) oxide
Identifiers
3D model (JSmol)
  • InChI=1S/4O.Hs
    Key: ZEDIDOIMNXPGSR-UHFFFAOYSA-N
  • O=[Hs](=O)(=O)=O
Properties
HsO4
Molar mass 334 g·mol−1
Structure[1]
tetrahedral (predicted)
Related compounds
Other cations
Osmium(VIII) oxide
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Hassium tetroxide (also hassium(VIII) oxide) is the inorganic compound with the formula HsO4. It is the highest oxide of hassium, a transactinide transition metal. It has little use outside of scientific interest, where it is often studied in comparison to osmium tetroxide and ruthenium tetroxide, its lighter octavalent group 8 element analogs.

Physical properties

[edit]

Because of the extreme cost and difficulty of producing hassium, hassium tetroxide has never been obtained in macroscopic amounts, as only a few molecules have ever been synthesized. As a result, many of its physical properties are experimentally uncharacterized and unknown. However, most research available generally shows hassium tetroxide to behave like a typical congener to osmium tetroxide. Hassium tetroxide is less volatile than osmium tetroxide.[2][3][4]

Synthesis

[edit]

Hassium tetroxide can be obtained by reacting atomic hassium with oxygen at 600 °C.[3][2]

Hs + 2 O2 → HsO4

Reactions

[edit]

Hassium tetroxide can be combined with sodium hydroxide in an acid-base reaction, in which case it acts like the acid, to form sodium hassate(VIII):[5]

HsO4 + 2 NaOH → Na2[HsO4(OH)2]

References

[edit]
  1. ^ Gulzari, Malli L. (2002). "Dramatic relativistic effects in atomization energy and volatility of the superheavy Hassium tetroxide and OsO4". Journal of Chemical Physics. 117 (23): 10441–10443. Bibcode:2002JChPh.11710441M. doi:10.1063/1.1527057.
  2. ^ a b "Chemistry of Hassium" (PDF). Gesellschaft für Schwerionenforschung. 2002. Archived from the original (PDF) on 2012-03-11. Retrieved 2019-06-30.
  3. ^ a b Düllmann, Ch. E.; Brüchle, W.; Dressler, R.; et al. (August 2002). "Chemical investigation of hassium (element 108)". Nature. 418 (6900): 859–862. Bibcode:2002Natur.418..859D. doi:10.1038/nature00980. PMID 12192405. S2CID 4412944.
  4. ^ Hoffman, Lee & Pershina 2006, pp. 1714–1715.
  5. ^ von Zweidorf, A.; Angert, R.; Brüchle, W.; et al. (2003). "Final result of the CALLISTO-experiment: Formation of sodium hassate(VIII)" (PDF). Advances in Nuclear and Radiochemistry. Vol. 3. Forschungszentrum Jülich. pp. 141–143. ISBN 978-3-89336-362-9. Retrieved 2023-07-11.

Sources

[edit]