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Ruthenium pentafluoride

Names
IUPAC name ruthenium(V) fluoride
Other names Ruthenium(V) fluoride, Ruthenium(5+) pentafluoride
Identifiers
CAS Number	14521-18-7
3D model (JSmol)	monomer: Interactive image tetramer: Interactive image
ECHA InfoCard	100.035.015
PubChem CID	101946419
CompTox Dashboard (EPA)	DTXSID20932536
InChI InChI=1S/5FH.Ru/h5*1H;/q;;;;;+5/p-5Key: IUSPGFXRAJDYRG-UHFFFAOYSA-I
SMILES monomer: F(F)(F)(F)F tetramer: F1(F)(F)(F)(F)(F)(F)(F)(F)(F)(F)(F)(F)(F)(F)(F)1
Properties
Chemical formula	F5Ru
Molar mass	196.06 g/mol
Appearance	green solid
Density	3.82 g/cm
Melting point	86.5 °C (187.7 °F; 359.6 K)
Boiling point	227 °C (441 °F; 500 K)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C , 100 kPa). Infobox references

Ruthenium pentafluoride is the inorganic compound with the empirical formula RuF₅. This green volatile solid has rarely been studied but is of interest as a binary fluoride of ruthenium, i.e. a compound containing only Ru and F. It is sensitive toward hydrolysis. Its structure consists of Ru₄F₂₀ tetramers, as seen in the isostructural platinum pentafluoride. Within the tetramers, each Ru adopts octahedral molecular geometry, with two bridging fluoride ligands.

Ruthenium pentafluoride reacts with iodine to give ruthenium(III) fluoride.

References

1. J. H. Holloway, R. D. Peacock, R. W. H. Small "The crystal structure of ruthenium pentafluoride" J. Chem. Soc., 1964, 644-648. doi:10.1039/JR9640000644
2. A. F. Holleman (2019), Lehrbuch der anorganischen Chemie (in German), Walter de Gruyter GmbH & Co KG, p. 1418, ISBN 978-3-11-083817-6
3. E.A. Seddon, K.R. Seddon (2013), The Chemistry of Ruthenium (in German), Elsevier, p. 155, ISBN 978-1-4832-8990-8

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