Platinum pentafluoride
{{Chembox
| ImageFile = PtF5solid.tif
| ImageSize = 264px
| ImageAlt =
| IUPACName = Platinum(V) fluoride
| OtherNames = Platinum pentafluoride
|Section1={{Chembox Identifiers
| CASNo = 13782-84-8
| CASNo_Ref = {{Cascite|correct|CAS}}
| PubChem =
| SMILES1 = F[Pt](F)(F)(F)F
| SMILES1_Comment = monomer
| SMILES2 = F[Pt-]1(F)(F)(F)[F+][Pt-](F)(F)(F)(F)[F+][Pt-](F)(F)(F)(F)[F+][Pt-]([F+]1)(F)(F)(F)F
| SMILES2_Comment = tetramer
| InChI=1S/5FH.Pt/h5*1H;/q;;;;;+5/p-5
| InChIKey=YKYDLLIWWRPCHN-UHFFFAOYSA-I
}}
|Section2={{Chembox Properties
| Formula = F5Pt
| MolarMass = 290.07
| Appearance = red solid
| Density =
| MeltingPtC = 75-76
| BoilingPtC = 300-305
| Solubility = }}
|Section3={{Chembox Hazards
| MainHazards =
| FlashPt =
| AutoignitionPt = }}
|Section8={{Chembox Related
| OtherCompounds = Platinum(IV) fluoride
Platinum(VI) fluoride
}}
}}
Platinum pentafluoride is the inorganic compound with the empirical formula PtF5. This red volatile solid has rarely been studied but is of interest as one of the few binary fluorides of platinum, i.e., a compound containing only Pt and F. It is hydrolyzed in water.
The compound was first prepared by Neil Bartlett by fluorination of platinum dichloride above 350 °C (below that temperature, only PtF4 forms).{{cite journal |last1=Bartlett |first1=N. |last2=Lohmann |first2=D. H. |title=Two New Fluorides of Platinum | journal=Proceedings of the Chemical Society | location=London| year=1960 | pages=14–15 | doi=10.1039/PS9600000001}}
Its structure consists of a tetramer, very similar to that of ruthenium pentafluoride. Within the tetramers, each Pt adopts octahedral molecular geometry, with two bridging fluoride ligands.{{Cite journal | doi = 10.1002/chin.199245006| title = Single-crystal investigations on PtF4 and PtF5| journal = European Journal of Solid State Inorganic Chemistry| volume = 29| issue =4–5 | pages = 625–633| year = 1992| last1 = Mueller | first1 = B. G.| last2 = Serafin | first2 = M.}}{{Citation broken|date=May 2015}}