Caesium auride
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| Caesium auride | ||
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| Identifiers | ||
| Jmol-3D images | {{#if:[Cs][Au]|Image 1 | |
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| Properties | ||
| Molecular formula | CsAu | |
| Appearance | Yellow crystals | |
 (verify) (what is:  /?)Except where noted otherwise, data are given for materials in their standard state (at 25 °C (77 °F), 100 kPa) | ||
| Infobox references | ||
Caesium auride (CsAu) is an ionic compound containing the unusual Au− ion. 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 ammonium adduct is dark blue.
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.[1]
References
- ↑ Jansen, Martin (2005-11-30). "Effects of relativistic motion of electrons on the chemistry of gold and platinum". Solid State Sciences 7 (12): 1464–1474. doi:10.1016/j.solidstatesciences.2005.06.015.
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