Silver hexafluorophosphate

This page is about the fluorophosphate. For the phosphate, see Silver phosphate.

Silver hexafluorophosphate

Identifiers

CAS Number

* 26042-63-7 Y

3D model (JSmol)

* Interactive image

ChemSpider |

* 147361 Y

EC Number |

* 247-428-6

PubChem CID

* 168464

InChI

* InChI=1S/Ag.F6P/c;1-7(2,3,4,5)6/q+1;-1 Y

Key: SCQBROMTFBBDHF-UHFFFAOYSA-N Y

* InChI=1/Ag.F6P/c;1-7(2,3,4,5)6/q+1;-1

Key: SCQBROMTFBBDHF-UHFFFAOYAC

SMILES

* [Ag+].F[P-](F)(F)(F)(F)F

Properties

Chemical formula

| AgPF6
Molar mass | 252.83 g/mol
Appearance  | Off-white powder
Melting point |  102 °C (216 °F; 375 K)
Solubility | soluble in organic solvents
Hazards
Safety data sheet | External MSDS
GHS pictograms |
GHS Signal word | Danger

GHS hazard statements

| H314

GHS precautionary statements

| P260, P264, P280, P301+330+331, P303+361+353, P304+340, P305+351+338, P310, P321, P363, P405, P501
NFPA 704 (fire diamond)  |

Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

N verify (what is YN ?)
Infobox references

Tracking categories (test):

* SizeSet

Silver hexafluorophosphate, sometimes referred to "silver PF-6," is an inorganic compound with the chemical formula AgPF6.

## Contents

* 1 Uses and reactions
* 2 Related reagents
* 2.1 Comparison with silver nitrate
* 3 References

## Uses and reactions

Silver hexafluorophosphate is a commonly encountered reagent in inorganic and organometallic chemistry. It is commonly used to replace halide ligands with the weakly coordinating hexafluorophosphate anion; abstraction of the halide is driven by the precipitation of the appropriate silver halide. Illustrative is the preparation of acetonitrile complexes from a metal bromide, a reaction that would typically be conducted in a solution of acetonitrile:

AgPF6 \+ Re(CO)5Br + CH3CN → AgBr + [Re(CO)5(CH3CN)]PF6

Ligands with tightly-bound halide atoms coordinate the silver, but do not themselves decompose:[1]

AgPF6 \+ 2 XeF2 → [Ag(XeF2)2]PF6.

AgPF6 can act as an oxidant, forming silver metal as a by-product. For example, in solution in dichloromethane, ferrocene is oxidised to ferrocenium hexafluorophosphate:[2]

AgPF6 \+ Fe(C5H5)2 → Ag + [Fe(C5H5)2]PF6 (E = 0.65 V)

## Related reagents

In terms of their properties and applications, silver tetrafluoroborate (AgBF4) and the hexafluoroantimonate (AgSbF6) are similar to AgPF6.

### Comparison with silver nitrate

Silver nitrate is a traditional and less expensive halide abstraction reagent, as indicated by its widespread use in qualitative tests for halides.

Relative to AgPF6, however, silver nitrate is poorly soluble in weakly basic solvents: the nitrate anion is Lewis basic and presents an interfering ligand that precludes its use in stringent applications.

## References

1. ↑ Grochala, Wojciech (Oct 2007). "Atypical compounds of gases, which have been called 'noble'". Chemical Society Reviews (Royal Society of Chemistry) 36 (10): 1640. doi:10.1039/b702109g.
2. ↑ Connelly, N. G.; Geiger, W. E. (1996). "Chemical Redox Agents for Organometallic Chemistry". Chem. Rev. 96 (2): 877–922. doi:10.1021/cr940053x. PMID 11848774.

* v
* t
* e

Silver compounds

Silver(0,I)|

* Ag2F

Silver(I)|

* AgBF4
* AgBr
* AgBrO3
* AgCN
* AgCNO
* AgCl
* AgClO
* AgClO2
* AgClO3
* AgClO4
* AgF
* AgI
* AgIO3
* AgMnO4
* AgNO2
* AgNO3
* AgN3
* Ag3N
* AgReO4
* AgSCN
* AgCF3SO3
* AgPF6
* Ag2CO3
* Ag2C2
* Ag2C2O4
* Ag2CrO4
* Ag2MoO4
* Ag2O
* Ag2S
* Ag2SO3
* Ag2S2O3
* Ag2SO4
* AgHSO4
* Ag2Se
* Ag2SeO3
* Ag2Te
* Ag3AsO4
* Ag3PO4
* KAg(CN)2
* RbAg4I5
* Ag(NH3)2NO3
* Ag2N2O2

| Organosilver(I) compounds|

* AgC2H3O2
* AgC22H43O2
* AgC4H3N2NSO2C6H4NH2

|

Silver(II)|

* AgF2

Silver(III)|

* Ag2O3
* AgF3
* Ag2S3

Silver(I,III)|

* Ag4O4

* v
* t
* e

Hexafluorophosphates

* HPF6
* NH4PF6
* BMIM-PF6
* [Fe(C5H5)2]PF6
* LiPF6
* (C6H5)3CPF6
* AgPF6
* KPF6
* NaPF6
* NnBu4PF6
* [Cu(MeCN)4]PF6

* v
* t
* e

Fluorine compounds

| HF |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | He

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LiF | BeF2 |  |  |  |  |  |  |  |  |  |  | BF3
B2F4 | CF4 | NF3 | OF2 | F− | Ne
NaF | MgF2 |  |  |  |  |  |  |  |  |  |  | AlF3 | SiF4 | PF3
PF5 | SF2
SF4
SF6 | ClF
ClF3
ClF5 | Ar
KF | CaF2 | ScF3 | TiF3
TiF4 | VF3
VF4
VF5 | CrF2
CrF3
CrF4
CrF5 | MnF2
MnF3 | FeF2
FeF3 | CoF2
CoF3 | NiF2 | CuF
CuF2 | ZnF2 | GaF3 | GeF4 | AsF3
AsF5 | SeF4
SeF6 | BrF3
BrF5 | KrF2
RbF | SrF2 | YF3 | ZrF4 | NbF4
NbF5 | MoF5
MoF6 | TcF6 | RuF3
RuF4
RuF5
RuF6 | RhF6 | PdF2 | AgF
AgF2
Ag2F | CdF2 | InF3 | SnF2
SnF4 | SbF3
SbF5 | TeF4 | IF
IF3
IF5
IF7 | XeF2
XeF4
XeF6
CsF | BaF2 | *  | HfF4 | TaF5 | WF4
WF6 | ReF4
ReF5
ReF6
ReF7 | OsF4
OsF5
OsF6 | IrF3
IrF5
IrF6 | PtF4
PtF6 | AuF3
Au2F10
AuF5·F2
| HgF2
Hg2F2 | TlF
TlF3 | PbF2
PbF4 | BiF3
BiF5 | Po | At | RnF2
Fr | Ra | **  | Rf | Db | Sg | Bh | Hs | Mt | Ds | Rg | Cn | Nh | Fl | Mc | Lv | Ts | Og
|  | ↓ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| * | LaF3 | CeF3 | Pr | NdF3 | PmF3 | SmF3
| Eu | Gd | Tb | DyF3 | Ho | Er | Tm | YbF3
| Lu |
| ** | AcF3 | ThF4 | Pa | UF3
UF4
UF5
UF6 | NpF3
NpF4
NpF5
NpF6
| PuF3
PuF4
PuF5
PuF6 | AmF3
AmF4 | CmF3 | Bk | Cf | Es | Fm | Md | No | Lr |

Other|

* AgBF4
* AgPF6
* Cs2AlF5
* K3AlF6
* Na3AlF6
* KAsF6
* LiAsF6
* NaAsF6
* HBF4
* KBF4
* LiBF4
* NaBF4
* RbBF4
* Ba(BF4)2
* Ni(BF4)2
* Pb(BF4)2
* Sn(BF4)2
* BaClF
* BaSiF6
* BaGeF6
* BrOF3
* BrO2F
* CBrF3
* CBr2F2
* CBr3F
* CClF3
* CCl2F2
* CCl3F
* CFN
* CF2O
* CF3I
* CHF3
* CH2F2
* CH3F
* C2Cl3F3
* C2H3F
* C6H5F
* C7H5F3
* C15F33N
* ClFO2
* CrFO4
* CrF2O2
* CsBF4
* NH4F
* FNO
* FNO2
* FNO3
* KHF2
* NaHF2
* ThOF2
* NH5F2
* (NH4)2SiF6
* F2OS
* F3OP
* PSF3
* HPF6
* HSbF6
* NH4PF6
* KPF6
* KSbF6
* LiPF6
* NaPF6
* NaSbF6
* Na2SiF6
* Na2TiF6
* Na2ZrF6
* TlPF6
* IOF3
* K2NbF7
* K2TaF7
* IO3F
* UO2F2

Chemical formulas

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