Silver subfluoride
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| Names | |
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IUPAC name
silver(0,I) fluoride
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| 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 | |
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Related compounds
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Silver(I) fluoride Silver(II) fluoride |
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Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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 (what is   ?) |
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| 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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