Palladium(II,IV) fluoride

Palladium(II,IV) fluoride

Names
Other names palladium(II) hexafluoropalladate(IV)
Identifiers
CAS Number	12021-58-8
Properties
Chemical formula	F3Pd
Molar mass	163.42 g·mol^−1
Appearance	black solid
Structure
Crystal structure	rhombohedral
Coordination geometry	octahedral
Related compounds
Other cations	Nickel(III) fluoride
Related compounds	Palladium(II) fluoride Palladium(IV) fluoride
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references

Palladium(II,IV) fluoride, also known as palladium trifluoride, is a chemical compound of palladium and fluorine. It has the empirical formula PdF₃, but is better described as the mixed-valence compound palladium(II) hexafluoropalladate(IV), Pd^II[Pd^IVF₆] and is often written as Pd[PdF₆] or Pd₂F₆.^[1][2]

Synthesis

Pd[PdF₆] is the most stable product of the reaction of fluorine and metallic palladium.^[1]

2Pd + 3F₂ → Pd[PdF₆]

Structure and properties

Pd[PdF₆] is paramagnetic and both Pd(II) and Pd(IV) occupy octahedral sites in the crystal structure.^[2][3] The Pd^II-F distance is 2.17 Å, whereas the Pd^IV-F distance is 1.90 Å.^[4]

See also

• Palladium fluoride

References

1. Greenwood, Norman N.; Earnshaw, Alan (1997). Chemistry of the Elements (2nd ed.). Butterworth-Heinemann. pp. 1152–1153. ISBN 0-08-037941-9.
2. Housecroft, C. E.; Sharpe, A. G. (2008). Inorganic Chemistry (3rd ed.). Prentice Hall. p. 788. ISBN 978-0131755536.
3. Hepworth, M. A.; Jack, K. H.; Peacock, R. D.; Westland, G. J. (1957). "The crystal structures of the trifluorides of iron, cobalt, ruthenium, rhodium, palladium and iridium". Acta Crystallogr. 10: 63–69. doi:10.1107/S0365110X57000158.
4. Tressaud, A.; Bartlett, N. (2001). "Preparation, Magnetic Properties, and Pressure-Induced Transitions of Some M^IIM^IVF₆ (M^II=Ni, Pd, Cu; M^IV=Pd, Pt, Sn) Complex Fluorides". J. Solid State Chem. 162: 333–340. doi:10.1006/jssc.2001.9331.