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金化铯

金化铯


左图:CsAu的液氨溶液
右图:黄色的CsAu结晶与其深蓝色的氨加合物

别名 Caesium auride
识别
CAS号 12256-37-0  checkY
SMILES
 
  • [Cs][Au]
性质
化学式 CsAu
摩尔质量 329.87 g·mol⁻¹
外观 黄色晶体
相关物质
其他阴离子 铂化铯
若非注明,所有数据均出自标准状态(25 ℃,100 kPa)下。

金化铯(CsAu)是一种离子化合物,其中含有罕见的Au离子。它可以由加热计量比为1:1的混合物制得,这两种金黄色的液体发生反应可以得到确定产物。它的液氨溶液是棕色的;固体是黄色的;而加合物是深蓝色的。

该化合物与水剧烈反应,生成氢气氢氧化铯单质,暴露在空气中会被迅速氧化。它在液氨中可以与铯选择性的离子交换树脂进行离子交换,生成四甲基金化铵[1]

金化铯和氧气在400℃反应,可以得到黄色的CsAuO。[2]

参考资料

  1. ^ Jansen, Martin. Effects of relativistic motion of electrons on the chemistry of gold and platinum. Solid State Sciences. 2005-11-30, 7 (12): 1464–1474. doi:10.1016/j.solidstatesciences.2005.06.015. 
  2. ^ 钟兴厚 等. 无机化学丛书 第六卷 卤素 铜分族 锌分族. 科学出版社, 2012 .pp 461. 3.5.5 氧化物、氢氧化物和金(I)酸盐
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