hassium tetroxide

{{Chembox

| ImageFile = Hassium-tetroxide-2D-dimensions.svg

| ImageFile1 = Osmium-tetroxide-ED-3D-vdW.png

| ImageSize = 130px

| ImageName = Stick model hassium tetroxide

| ImageFileR1 =

| ImageNameR1 =

| ImageFile2 =

| ImageSize2 =

| PIN = Hassium tetraoxide

| SystematicName = Tetraoxohassium

| OtherNames = Hassium(VIII) oxide

| Section1 = {{Chembox Identifiers

| StdInChI=1S/4O.Hs

| StdInChIKey=ZEDIDOIMNXPGSR-UHFFFAOYSA-N

| SMILES = O=[Hs](=O)(=O)=O

}}

| Section2 = {{Chembox Properties

| Hs=1|O=4

}}

| Section3 = {{Chembox Structure

| Structure_ref = {{ cite journal |author1=Gulzari, Malli L. | title = Dramatic relativistic effects in atomization energy and volatility of the superheavy Hassium tetroxide and OsO₄. | journal = Journal of Chemical Physics | year = 2002 | volume = 117 | issue = 23 | pages = 10441–10443 | doi = 10.1063/1.1527057 | bibcode = 2002JChPh.11710441M }}

| MolShape = tetrahedral (predicted)

}}

| Section9 = {{Chembox Related

| OtherAnions =

| OtherCations = Osmium(VIII) oxide

| OtherFunction =

| OtherFunction_label =

| OtherCompounds =

}}

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

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.{{Cite web |date=2002 |title=Chemistry of Hassium |url=http://www.gsi.de/documents/DOC-2003-Jun-29-2.pdf |archive-url=https://web.archive.org/web/20120311001032/http://www.gsi.de/documents/DOC-2003-Jun-29-2.pdf |archive-date=2012-03-11 |access-date=2019-06-30 |publisher=Gesellschaft für Schwerionenforschung}}{{cite journal |last1=Düllmann |first1=Ch. E. |last2=Brüchle |first2=W. |last3=Dressler |first3=R. |last4=Eberhardt |first4=K. |last5=Eichler |first5=B. |last6=Eichler |first6=R. |last7=Gäggeler |first7=H. W. |last8=Ginter |first8=T. N. |last9=Glaus |first9=F. |last10=Gregorich |first10=K. E. |last11=Hoffman |first11=D. C. |last12=Jäger |first12=E. |last13=Jost |first13=D. T. |last14=Kirbach |first14=U. W. |last15=Lee |first15=D. M. |last16=Nitsche |first16=H. |last17=Patin |first17=J. B. |last18=Pershina |first18=V. |last19=Piguet |first19=D. |last20=Qin |first20=Z. |last21=Schädel |first21=M. |last22=Schausten |first22=B. |last23=Schimpf |first23=E. |last24=Schött |first24=H.-J. |last25=Soverna |first25=S. |last26=Sudowe |first26=R. |last27=Thörle |first27=P. |last28=Timokhin |first28=S. N. |last29=Trautmann |first29=N. |last30=Türler |first30=A. |last31=Vahle |first31=A. |last32=Wirth |first32=G. |last33=Yakushev |first33=A. B. |last34=Zielinski |first34=P. M. |display-authors=3|title=Chemical investigation of hassium (element 108) |journal=Nature |date=August 2002 |volume=418 |issue=6900 |pages=859–862 |doi=10.1038/nature00980|pmid=12192405 |bibcode=2002Natur.418..859D |s2cid=4412944 }}{{sfn|Hoffman|Lee|Pershina|2006|pp=1714–1715}}

Synthesis

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

:: {{Chem2|Hs + 2 O2 → HsO4}}

Reactions

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):{{cite book |last1=von Zweidorf |first1=A. |title=Advances in Nuclear and Radiochemistry |last2=Angert |first2=R. |last3=Brüchle |first3=W. |publisher=Forschungszentrum Jülich |year=2003 |isbn=978-3-89336-362-9 |volume=3 |pages=141–143 |chapter=Final result of the CALLISTO-experiment: Formation of sodium hassate(VIII) |display-authors=et al. |access-date=2023-07-11|chapter-url=https://download.uni-mainz.de/fb09-kernchemie/jb2003/a2.pdf}}

:: {{chem2|HsO4 + 2 NaOH -> Na2[HsO4(OH)2]}}

References

Sources

{{cite book|last1=Hoffman|first1=D. C.|last2=Lee|first2=D. M.|last3=Pershina|first3=V. |chapter=Transactinides and the future elements|pages=1652–1752|editor1-last=Morss|editor1-first=L. R. |editor2-last=Edelstein |editor2-first=N. M.|editor3-last=Fuger|editor3-first=J.|year=2006 |title=The Chemistry of the Actinide and Transactinide Elements |volume=3|location=Dordrecht, The Netherlands |publisher=Springer |isbn=1-4020-3555-1 |edition=3rd |url=https://archive.org/details/chemistryactinid00katz|url-access=limited}}

Category:Oxides

Category:Hassium