查看“︁三溴化锎”︁的源代码

{{NoteTA|G1=Chemistry}}
{{Chembox
|ImageFile=Aluminium-trichloride-crystal-3D-balls.png
|OtherNames=溴化锎(III)<br />溴化锎
|Section3={{Chembox Structure
| CrystalStruct= [[单斜晶系]]}}
|Section1={{Chembox Identifiers
| CASNo= 20758-68-3
|SMILES=[Cf+3].[Br-].[Br-].[Br-]
}}
|Section2={{Chembox Properties
| Appearance= 绿色晶体<ref name="webelements"/>
|Cf=1|Br=3
|Density=
| MeltingPt= 675 °C<ref name="webelements">[http://www.webelements.com/compounds/californium/californium_tribromide.html Californium(III)-bromid bei www.webelements.com.]</ref>
| BoilingPt= 
|Solubility=
}}
|Section8={{Chembox Related
|OtherAnions=[[三氟化锎]]<br />[[三氯化锎]]<br />[[三碘化锎]]
|OtherCations=[[三溴化锫]]<br />[[三溴化锿]]
}}
}}

'''三溴化锎'''是[[锎]]的[[溴化物]]，化学式 CfBr<sub>3</sub>。

== 性质 ==
三溴化锎是绿色固体，<ref>[http://www.chemie-master.de/pse/pse.php?modul=Cf Californiumbromid (CfBr<sub>3</sub>): Der Kristall zeigt grüne Farbe] {{Wayback|url=http://www.chemie-master.de/pse/pse.php?modul=Cf |date=20220121072354 }}.</ref>加热部分分解成[[二溴化锎]]（CfBr<sub>2</sub>）：

:<chem>2 CfBr3 ->[\Delta T] 2 CfBr2 + Br2</chem>

三溴化锎是[[氯化铝|AlCl<sub>3</sub>]]或[[三氯化铁|FeCl<sub>3</sub>]]结构的晶体。在前种晶体结构中，锎原子是六配位的，有三个独立的Cf-Br键长279.5&nbsp;±&nbsp;0.9&nbsp;pm、282.7&nbsp;±&nbsp;1.1&nbsp;pm和282.8&nbsp;±&nbsp;0.8&nbsp;pm。<ref>John H. Burns, J. R. Peterson, J. N. Stevenson: ''Crystallographic Studies of Some Transuranic Trihalides: <sup>239</sup>PuCl<sub>3</sub>, <sup>244</sup>CmBr<sub>3</sub>, <sup>249</sup>BkBr<sub>3</sub> and <sup>249</sup>CfBr<sub>3</sub>'', in: ''[[J. Inorg. Nucl. Chem.]]'', '''1975''', ''37''&nbsp;(3), S.&nbsp;743–749 ([[doi:10.1016/0022-1902(75)80532-X]]).</ref>

当<sup>249</sup>Bk衰变成<sup>249</sup>Cf时，这种锫化合物的晶体结构和氧化态会保留到锎化合物中。氯化铝结构的[[三溴化锫|BkBr<sub>3</sub>]]的衰变产物是氯化铝结构的CfBr<sub>3</sub>，而[[三溴化钚]]结构的BkBr<sub>3</sub>的衰变产物则是先前未知的三溴化钚结构CfBr<sub>3</sub>。<ref>J. P. Young, R. G. Haire, J. R. Peterson, D. D. Ensor, R. L. Fellows: ''Chemical Consequences of Radioactive Decay. 1. Study of <sup>249</sup>Cf Ingrowth into Crystalline <sup>249</sup>BkBr<sub>3</sub>: A New Crystalline Phase of CfBr<sub>3</sub>'', in: ''[[Inorg. Chem.]]'', '''1980''', ''19''&nbsp;(8), S.&nbsp;2209–2212 ([[doi:10.1021/ic50210a003]]).</ref>

== 参考资料==
<references/>

== 扩展阅读==
* Richard G. Haire: [http://radchem.nevada.edu/classes/rdch710/files/Californium.pdf ''Californium''] {{Wayback|url=http://radchem.nevada.edu/classes/rdch710/files/Californium.pdf |date=20100717154045 }}, in: Lester R. Morss, Norman M. Edelstein, Jean Fuger (Hrsg.): ''The Chemistry of the Actinide and Transactinide Elements'', Springer, Dordrecht 2006; ISBN 1-4020-3555-1, S.&nbsp;1499–1576 ([[doi:10.1007/1-4020-3598-5_11]]).
{{锎化合物}}
{{溴化物}}

[[Category:锎化合物]]
[[Category:溴化物]]