Gold heptafluoride

Gold heptafluoride
Names
	IUPAC name Difluorinegold(V) fluoride
	Other names Gold heptafluoride
Identifiers
3D model (JSmol)	Interactive image;
	InChI InChI=1S/Au.F2.5FH/c;1-2;;;;;/h;;5*1H/q+5;;;;;;/p-5 Key: IIWIEJHPIFUIKA-UHFFFAOYSA-I;
	SMILES F[Au](F)(F)(F)F.FF;
Properties
Chemical formula	AuF7
Molar mass	322.956 g/mol
Hazards
	Occupational safety and health (OHS/OSH):
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). verify (what is ?) Infobox references

Gold heptafluoride is a gold(V) compound with the empirical formula AuF₇. The synthesis of this compound was first reported in 1986. However, current calculations suggest that the structure of the synthesized molecule was actually a difluorine ligand on a gold pentafluoride core, AuF₅·F₂. That would make it the first difluorine complex and the first compound containing a fluorine atom with an oxidation state of zero. 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.

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