|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|
Except where noted otherwise, data is given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
|what is: / ?)(|
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:
- Ag + AgF → Ag2F
Ag2F adopts the anti-CdI2 crystal 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).
- Lee Poyer, Maurice Fielder, Hugh Harrison, Burl E. Bryant "Disilver Fluoride: (Silver “Subfluoride”)" Inorganic Syntheses, 1957, Volume 5, 92–94. doi:10.1002/9780470132364.ch6
- A Williams (April 1989). "Neutron powder diffraction study of silver subfluoride". J. Phys.: Condens. Matter 1 (15): 2569–2574. doi:10.1088/0953-8984/1/15/002.
- Egon Wiberg, Arnold Frederick Holleman (2001) Inorganic Chemistry, Elsevier ISBN 0-12-352651-5