Gold heptafluoride

Gold heptafluoride

Names
IUPAC name Difluorinegold(V) fluoride
Other names Gold heptafluoride
Properties
Chemical formula	AuF7
Molar mass	322.956 g/mol
Hazards
Main hazards	Corrosive, toxic
Related compounds
Other cations	ReF7, IF7
Related compounds	AuF3, AuF5
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

Gold heptafluoride is a gold(V) compound with the empirical formula AuF₇. The synthesis of this compound was first reported in 1986.^[1] Current calculations suggest that it may be the first difluorine complex, AuF₅·F₂. The gold(V) difluorine complex is calculated to be 205 kJ/mol more stable than gold(VII) fluoride. The vibrational frequency at 734 cm⁻¹ is the hallmark of the end-on coordinated difluorine molecule.^[2]

References

1. Timakov, A. A.; Prusakov, V. N.; Drobyshevskii, Y. V. (1986). Dokl. Akad. Nauk SSSR (in Russian) 291: 125–128. Missing or empty |title= (help)
2. Himmel, Daniel; Riedel, Sebastian (2007-05-31). "After 20 Years, Theoretical Evidence That "AuF7" Is Actually AuF5·F2". Inorganic Chemistry 46 (13): 5338–5342. doi:10.1021/ic700431s.