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六溴化钨

六溴化钨
别名 溴化钨(VI)
识别
CAS号 13701-86-5  checkY
PubChem 14440251
SMILES
 
  • Br[W](Br)(Br)(Br)(Br)Br
性质
化学式 Br6W
摩尔质量 663.26 g·mol−1
外观 深灰色固体[1]
密度 6.9 g·cm−3[2]
熔点 232°C[2]
结构
晶体结构 三方晶系
空间群 (No. 148)
晶格常数 a = 639.4 pm, c = 1753 pm[3]
相关物质
其他阴离子 六氟化钨
六氯化钨
相关化学品 四溴化钨德语Wolfram(IV)-bromid
五溴化钨
若非注明,所有数据均出自标准状态(25 ℃,100 kPa)下。

六溴化钨的一种溴化物化学式 WBr6

制备

六溴化钨可以通过在没有氧气的保护气氛中使五溴化钨反应而成。[1]

六溴化钨也可以通过使六羰基钨与溴反应或通过六氯化钨三溴化硼化合而成。[1]

性质

六溴化钨是非常容易水解的深灰色粉末或带有金属光泽的浅灰色固体。在室温下,它会与干燥的氧气缓慢反应,释放出溴。在高于200°C下,它会迅速分解为五溴化钨和溴。[1]它的结构属三方晶系,空间群,由WBr6八面体组成。[3]

它和IN3反应,生成WNBr3[4]它和NOCH2Br2中反应,可以得到[WBr2(NO)3]2[5]它加热时可以被红磷还原,经黑色的WBr5、暗棕色的WBr4、暗绿色的W4(PBr)Br10,最终得到黑色的W6Br12[6]

6 WBr6 + 8 P → W6Br12 + 8 PBr3

参考资料

  1. ^ 1.0 1.1 1.2 1.3 hrsg. von Georg Brauer. Unter Mitarb. von M. Baudler. Handbuch der präparativen anorganischen Chemie / 3.. Stuttgart: Enke. 1981: 1561. ISBN 3-432-87823-0. OCLC 310719495 (德语). 
  2. ^ 2.0 2.1 Perry, Dale L. Handbook of Inorganic Compounds. Boca Raton, FL. 2011: 441. ISBN 978-1-4398-1462-8. OCLC 759865801. 
  3. ^ 3.0 3.1 Willing, W.; Müller, U. Wolframhexabromid. Acta Crystallographica Section C Crystal Structure Communications (International Union of Crystallography (IUCr)). 1987-07-15, 43 (7): 1425–1426. ISSN 0108-2701. doi:10.1107/s0108270187091625. 
  4. ^ Ruschke, Peter; Dehnicke, Kurt. Nitridobromo complexes of tungsten(VI). Zeitschrift fuer Naturforschung, Teil B: Anorganische Chemie, Organische Chemie, 1980. 35B (12): 1589-1591. ISSN: 0340-5087.
  5. ^ Berg, Alexander; Dehnicke, Kurt. Dibromotrinitrosyltungsten, [WBr2(NO)​3]​2. Zeitschrift fuer Naturforschung, Teil B: Anorganische Chemie, Organische Chemie, 1985. 40B (6): 842-844. ISSN: 0340-5087.
  6. ^ Markus Ströbele, Klaus Eichele, Hans-Jürgen Meyer. Cluster Harvesting in the WBr 6 –P System. Inorganic Chemistry. 2015-02-02, 54 (3): 989–992 [2020-11-27]. ISSN 0020-1669. doi:10.1021/ic502333u. (原始内容存档于2022-04-25) (英语). 
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六溴化钨
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