查看“︁氟化锫”︁的源代码

{{Chembox
|ImageFile=Kristallstruktur Yttrium(III)-fluorid.png
|OtherNames=氟化锫(III)<br />三氟化锫
|Section3={{Chembox Structure
| CrystalStruct= [[正交晶系]]
| LattConst_a= 670&nbsp;pm
|LattConst_b = 709&nbsp;pm
|LattConst_c= 441&nbsp;pm
}}
|Section1={{Chembox Identifiers
| CASNo=20716-88-5
| PubChem             = 
| ChemSpider          = 
|SMILES=[F-].[F-].[F-].[Bk+3]
}}
|Section2={{Chembox Properties
| Appearance= 黄绿色固体<ref>[http://www.webelements.com/compounds/berkelium/berkelium_trifluoride.html Berkelium(III)-fluorid bei www.webelements.com.]</ref>
|Bk=1|F=3
| Density= 9.70 g·cm<sup>−3</sup><ref name="BKF3_1968"/>
|MeltingPt=
|BoilingPt=
|Solubility=}}
|Section8={{Chembox Related
|OtherAnions=[[氯化锫]]<br />[[溴化锫]]<br />[[碘化锫]]
|OtherCations=[[三氟化锔]]<br />[[三氟化锎]]
|OtherCpds=[[四氟化锫]]
}}
}}

'''氟化锫'''是一种[[锫]]的[[氟化物]]，化学式 BkF<sub>3</sub>。

== 性质==
氟化锫是一种黄绿色固体，有两种结构。在低温下，它是[[正交晶系]]的（[[氟化钇|YF<sub>3</sub>]]结构），晶格参数 ''a''&nbsp;=&nbsp;670&nbsp;[[皮米|pm]]、''b''&nbsp;=&nbsp;709&nbsp;pm 和''c''&nbsp;=&nbsp;441&nbsp;pm，密度9.70 g·cm<sup>−3</sup>。在高温下，它是[[三方晶系]]的（[[氟化镧|LaF<sub>3</sub>]]结构），晶格参数''a''&nbsp;=&nbsp;697&nbsp;pm 和''c''&nbsp;=&nbsp;714&nbsp;pm，密度10.15&nbsp;g·cm<sup>−3</sup>。BkF<sub>3</sub> 的转变温度在 350 至600&nbsp;°C之间。<ref name="BKF3_1968">J. R. Peterson, B. B. Cunningham: ''Crystal Structures and Lattice Parameters of the Compounds of Berkelium IV. Berkelium Trifluoride'', in: ''[[J. Inorg. Nucl. Chem.]]'', '''1968''', ''30''&nbsp;(7), S.&nbsp;1775–1784 ({{DOI|10.1016/0022-1902(68)80353-7}}).</ref><ref>D. D. Ensor, J. R. Peterson, R. G. Haire, J. P. Young: ''Absorption Spectrophotometric Study of Berkelium(III) and (IV) Fluorides in the Solid State'', in: ''[[J. Inorg. Nucl. Chem.]]'', '''1981''', ''43''&nbsp;(5), S.&nbsp;1001–1003 ({{DOI|10.1016/0022-1902(81)80164-9}}).</ref><ref name="PETERSON_THESIS">Joseph Richard Peterson: ''The Solution Absorption Spectrum of Bk<sup>3+</sup> and the Crystallography of Berkelium Dioxide, Sesquioxide, Trichloride, Oxychloride, and Trifluoride'', Ph.D. Thesis, October 1967, U. S. Atomic Energy Commission Document Number UCRL-17875 (1967).</ref>

== 用处==
氟化锫被[[锂]]还原，可以得到金属锫：<ref name="BK_CRYS">J. R. Peterson, J. A. Fahey, R. D. Baybarz: ''The Crystal Structures and Lattice Parameters of Berkelium Metal'', in: ''[[J. Inorg. Nucl. Chem.]]'', '''1971''', ''33''&nbsp;(10), S.&nbsp;3345–3351 ({{DOI|10.1016/0022-1902(71)80656-5}}).</ref>

:<chem>BkF3 + 3 Li -> Bk + 3 LiF</chem>

== 参考资料==
<references/>

== 扩展阅读==
* David E. Hobart, Joseph R. Peterson: [http://radchem.nevada.edu/classes/rdch710/files/Berkelium.pdf ''Berkelium''] {{Wayback|url=http://radchem.nevada.edu/classes/rdch710/files/Berkelium.pdf |date=20100717153832 }}, 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;1444–1498 ({{DOI|10.1007/1-4020-3598-5_10}}).
{{锫化合物}}
{{氟化物}}

[[Category:锫化合物]]
[[Category:氟化物]]