Palladium(II,IV) fluoride

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), PdII[PdIVF6], and is often written as Pd[PdF6] or Pd2F6.[1][2]

Palladium(II,IV) fluoride
Names
Other names
palladium(II) hexafluoropalladate(IV)
Identifiers
Properties
F3Pd
Molar mass 163.42 g·mol−1
Appearance black solid
+1760.0·10−6 cm3/mol
Structure
rhombohedral
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

Synthesis

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

2 Pd + 3 F2 → 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 PdII-F distance is 2.17 Å, whereas the PdIV-F distance is 1.90 Å.[4]

Coordination environments of PdII and PdIV, showing different distances to F atoms

See also

References

  1. Greenwood, Norman N.; Earnshaw, Alan (1997). Chemistry of the Elements (2nd ed.). Butterworth-Heinemann. pp. 1152–1153. ISBN 978-0-08-037941-8.
  2. Housecroft, C. E.; Sharpe, A. G. (2008). Inorganic Chemistry (3rd ed.). Prentice Hall. p. 788. ISBN 978-0-13-175553-6.
  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 MIIMIVF6 (MII=Ni, Pd, Cu; MIV=Pd, Pt, Sn) Complex Fluorides". J. Solid State Chem. 162 (2): 333–340. doi:10.1006/jssc.2001.9331.
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