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Silver subfluoride

Silver subfluoride
Silver subfluoride
Names
IUPAC name
silver(0,I) fluoride
Identifiers
Properties
Ag2F
Molar mass 234.734 g/mol
Appearance Bronze-colored crystals with green luster
Density 8.6 g/cm3, solid
Melting point 90 °C (194 °F; 363 K) decomposition
reacts
Related compounds
Related compounds
Silver(I) fluoride
Silver(II) fluoride
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
YesY  (what is YesYN ?)
Infobox references

Silver Subfluoride is the inorganic compound with the formula Ag2F. This is an unusual example of a compound where the oxidation state of silver is fractional. The compound is produced by the reaction of silver and silver(I) fluoride:

It forms small crystals with a bronze reflex and is a good conductor of electricity. On contact with water almost instant hydrolysis occurs with the precipitation of silver (Ag) powder.

Ag2F adopts the anti-CdI2crystal structure, i.e. the same structure as cadmium iodide, CdI2, but with "Ag½+ " centres in the I positions and F in the Cd2+ positions. The shortest distance between silver atoms is 299.6 pm (compared to 289 pm in the metal).


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