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四溴化锇

四溴化锇
识别
CAS号 59201-52-4  checkY
PubChem 101978335
SMILES
 
  • Br[Os](Br)(Br)Br
性质
化学式 Br4Os
摩尔质量 509.85 g·mol−1
外观 黑色固体[1]
熔点 350 °C(分解)[1]
相关物质
其他阴离子 四氟化锇
四氯化锇
其他阳离子 四溴化铼
四溴化铱
四溴化铂
相关化学品 三溴化锇
若非注明,所有数据均出自标准状态(25 ℃,100 kPa)下。

四溴化锇是一种溴化物,化学式OsBr4

制备

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四溴化锇可以由直接在高温高压下反应而成。[1]

它也可以由四氯化锇和溴在 330 °C 和高压下反应而成。四溴化锇可以由四氧化锇溴化氢的酒精溶液反应而成。[2]

性质

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四溴化锇是一种黑色固体。[1]在 350 °C 时,四溴化锇与空气反应,形成 Os2OBr6[3]

反应

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在 300–400 °C 的密闭环境中,四溴化锇会分解成三溴化锇。[4]

相关物质

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  • 三溴化锇(OsBr3.4~3.6):最初的文献试图通过在加热、加压下反应得到OsBr3(CAS:59201-51-3),[5]但实际上得到的是Os2OBr6[6]在对四溴化锇热分解的研究中发现,生成的“三溴化锇”实际上是非整比化合物OsBr3.4~3.6[7]

参考资料

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  1. ^ 1.0 1.1 1.2 1.3 ISBN 3110126419
    单击这里添加你的引用。如果你仍在编辑主页面文章,你可能需要在一个新窗口打开。
  2. ^ Simon Cotton. Chemistry of Precious Metals. Springer Science & Business Media. 1997: 5. ISBN 0-7514-0413-6. 
  3. ^ N. N. Greenwood, A. Earnshaw. Chemistry of the Elements. Elsevier. 2012: 1083. ISBN 978-0-08-050109-3. 
  4. ^ Simon Cotton. Chemistry of Precious Metals. Springer Science & Business Media. 1997: 4. ISBN 0-7514-0413-6. 
  5. ^ Shchukarev, S. A.; Kolbin, N. I.; Semenov, I. N. Preparation of osmium tribromide. Zhurnal Neorganicheskoi Khimii, 1961. 6: 1246-1247. ISSN 0044-457X.
  6. ^ Harald Schäfer. OsBr3 oder OsO0,5 Br3??. Zeitschrift für anorganische und allgemeine Chemie. 1986-04, 535 (4): 219–220 [2021-11-12]. ISSN 0044-2313. doi:10.1002/zaac.19865350425. (原始内容存档于2021-11-12) (德语). 
  7. ^ G. Thiele, H. Wochner, H. Wagner. Über Osmiumbromide. Zeitschrift für anorganische und allgemeine Chemie. 1985-11, 530 (11): 178–186 [2021-11-12]. ISSN 0044-2313. doi:10.1002/zaac.19855301121. (原始内容存档于2021-11-12) (德语). 
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四溴化锇
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