Caesium auride
| Identifiers | |
|---|---|
12256-37-0  |
|
| Jmol 3D model | Interactive image |
|
|
|
|
| Properties | |
| CsAu | |
| Appearance | Yellow crystals |
| Melting point | 580 °C (1,076 °F; 853 K)[1] |
| Structure | |
| body-centered cubic | |
|
a = 4.24Å[1]
|
|
|
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 | |
Caesium auride (CsAu) is an ionic compound containing the unusual Au− ion first discovered in 1978 in the laboratory of Joseph Lagowski.[2] It is obtained by heating a stoichiometric mixture of caesium and gold; the two metallic-yellow liquids react to give a clear product. The solution in liquid ammonia is brown, and the solid is yellow (the colour of both metals making up the compound); the ammonium adduct is dark blue. Despite being a compound of two metals, CsAu lacks metallic properties since the free electrons in both metals are used up, as in all ionic compounds.
The compound reacts violently with water, yielding caesium hydroxide, metallic gold, and hydrogen gas; in liquid ammonia it can be reacted with a caesium-specific ion exchange resin to produce tetramethylammonium auride.[3]
References
Further reading
- Lua error in package.lua at line 80: module 'strict' not found.—includes photograph of the chemical
<templatestyles src="Asbox/styles.css"></templatestyles>
 |
This inorganic compound–related article is a stub. You can help Wikipedia by expanding it. |
- Articles without EBI source
- Chemical pages without ChemSpiderID
- Articles without KEGG source
- Articles without UNII source
- Articles with changed InChI identifier
- Pages using collapsible list with both background and text-align in titlestyle
- Chemical articles using a fixed chemical formula
- Chembox articles without image
- Gold compounds
- Caesium compounds
- Group I semiconductors
- Inorganic compound stubs
