Hassium tetroxide

Hassium tetroxide
Names
	Preferred IUPAC name Hassium tetraoxide
	Systematic IUPAC name Tetraoxohassium
	Other names Hassium(VIII) oxide
Identifiers
3D model (JSmol)	Interactive image;
	InChI InChI=1S/4O.Hs Key: ZEDIDOIMNXPGSR-UHFFFAOYSA-N;
	SMILES O=[Hs](=O)(=O)=O;
Properties
Chemical formula	HsO4
Molar mass	334 g·mol−1
Structure
Molecular shape	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). Infobox references

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.

^ 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.