ruthenium pentafluoride

{{Chembox

| ImageFile1 = PtF5solid.tif

| ImageFile2 = Unit_cell__of_OsF5.png

| ImageSize = 264px

| ImageAlt =

| IUPACName = ruthenium(V) fluoride

| OtherNames = Ruthenium(V) fluoride, Ruthenium(5+) pentafluoride

| Section1 = {{Chembox Identifiers

| CASNo = 14521-18-7

| PubChem = 101946419

| InChI = InChI=1S/5FH.Ru/h5*1H;/q;;;;;+5/p-5

| SMILES = F[Ru](F)(F)(F)F

| SMILES_Comment = monomer

| SMILES1 = F[Ru-]1(F)(F)(F)[F+][Ru-](F)(F)(F)(F)[F+][Ru-](F)(F)(F)(F)[F+][Ru-](F)(F)(F)(F)[F+]1

| SMILES1_Comment = tetramer

| InChIKey = IUSPGFXRAJDYRG-UHFFFAOYSA-I

}}

| Section2 = {{Chembox Properties

| Formula = F₅Ru

| MolarMass = 196.06 g/mol

| Appearance = green solid

| Density = 3.82 g/cm³

| MeltingPtC = 86.5

| BoilingPtC = 227

| Solubility =

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| Section3 = {{Chembox Hazards

| MainHazards =

| FlashPt =

| AutoignitionPt = }}

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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.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}}

Ruthenium pentafluoride reacts with iodine to give ruthenium(III) fluoride.{{citation|surname1=A. F. Holleman|title=Lehrbuch der anorganischen Chemie|publisher=Walter de Gruyter GmbH & Co KG|year=2019|at=p. 1418|isbn=978-3-11-083817-6|language=German|url={{Google books URL|1HeVDwAAQBAJ||page=1418}}

}}{{citation|surname1=E.A. Seddon, K.R. Seddon|title= The Chemistry of Ruthenium |publisher=Elsevier|year=2013|at=p. 155|isbn=978-1-4832-8990-8|language=German|url={{Google books URL|5EsXBQAAQBAJ||page=155}}}}