查看“︁四溴化鏷”︁的源代码

{{Chembox
| IUPACName = Protactinium(IV) tetrabromide
| ImageFile = Kristallstruktur_Uran(IV)-chlorid.png
| ImageName = 
| Section1 = {{Chembox Identifiers
|  SMILES = [Pa](Br)(Br)(Br)Br
|  CASNo = 13867-42-0
|  CASNo_Ref = {{cascite|correct|CAS}}
}}
| Section2 = {{Chembox Properties
|  Formula= PaBr<sub>4</sub>
|  MolarMass = 550.652
|  Appearance = 红色晶體
}}
| Section3 = {{Chembox Structure
|  CrystalStruct = 四方晶系<ref name=pabr4>{{cite journal|last1=Tahri|first1=Y|last2=Chermette|first2=H|last3=Elkhatib|first3=N|last4=Krupa|first4=J|last5=Simoni|first5=E|title=Electronic structures of thorium and protactinium halide clusters of [ThX8]4− type|journal=Journal of the Less Common Metals|volume=158|pages=105|year=1990|doi=10.1016/0022-5088(90)90436-N}}</ref><ref name=pabr5b>{{cite journal|doi=10.1038/217737a0|last1=Brown|first1=D.|last2=Petcher|first2=T. J.|last3=Smith|first3=A. J.|title=Crystal Structures of some Protactinium Bromides|year=1968|pages=737|volume=217|journal=Nature|issue=5130}}</ref>，tI20
|  SpaceGroup = I4<sub>1</sub>/amd , No. 141
}}
}}
'''四溴化鏷'''是[[無機化合物]]，是一種[[鏷]][[鹵化物]]，由[[鏷]]和[[溴]]組成，具有[[放射性]]，化學式為PaBr<sub>4</sub>，是棕色晶體，可能是因為[[溴]]是棕色造成四溴化鏷的外觀為棕色晶體，其晶體結構為[[四方晶系]]<ref name=pabr4/><ref name=pabr5b/>。四溴化鏷在[[真空]]中昇華在400° C<ref name=pabr4/>。結構與四溴化鏷最接近的[[鏷]][[鹵化物]]是[[四氯化鏷]]。

==制备==
四溴化镤可以由[[五溴化镤]]被[[氢气]]或[[铝]]反应而成：<ref name='Брауэр'>{{книга
 |заглавие      = Руководство по неорганическому синтезу: В 6-ти т. |ответственный = Ред. Брауэр Г. |место         = М.
 |издательство  = Мир |год           = 1985 |том           = 4 |страниц       = 447
}}</ref>
::<math>\mathsf{ 3 PaBr_5 + Al \ \xrightarrow{400-450^oC}\ 3 PaBr_4 + AlBr_3 }</math>
::<math>\mathsf{ 2 PaBr_5 + H_2 \ \xrightarrow{800^oC}\ 2 PaBr_4 + 2 HBr }</math>

==反应==
四溴化镤和[[三氧化二锑]]反应，生成溴氧化镤：<ref>{{cite book | last=Morss | first=Lester R. | last2=Edelstein | first2=Norman M. | last3=Fuger | first3=J. | title=The chemistry of the actinide and transactinide elements. Volumes 1-6 | publisher=Springer | publication-place=Dordrecht | date=2010 | isbn=978-94-007-0211-0 | oclc=682907473 |page=874}}</ref>
::<math>\mathsf{ 3 PaBr_4 + Sb_2O_3 \ \xrightarrow{150-200^oC}\ 3 PaOBr_2 + 2 SbBr_3  }</math>

== 參考文獻 ==
{{Reflist}}
{{鏷化合物}}
{{溴化物}}
{{Inorganic-compound-stub}}

[[Category:溴化物]]
[[Category:锕系金属卤化物]]
[[Category:鏷化合物]]