查看“︁二茂铍”︁的源代码

{{Chembox
| Name = 
| NameEn = 
| ImageFile = Slipped-sandwich structure of Cp2Be.svg
|  ImageSize = 120px
|  ImageAlt = 
| IUPACName = 
| IUPACNameZh = 
| OtherNames = 
| Section1 = {{Chembox Identifiers
|   CASNo = 37048-03-6
|   CASNo_Ref = {{cascite|correct|CAS}}
|   CASNo_Comment = η<sup>1</sup>, η<sup>5</sup>
|   CASNo2 = 12083-43-1
|   CASNo2_Ref = {{cascite|correct|CAS}}
|   CASNo2_Comment = η<sup>5</sup>, η<sup>5</sup>
|   PubChem = 
|   SMILES = c1ccc[cH-]1.[Be+2].c2ccc[cH-]2 }}
| Section2 = {{Chembox Properties
| C=10 | H=10 | Be=1
|   Appearance = 无色晶体
|   Density = 
|   MeltingPtC = 59
|   BoilingPtC = 233
|   Solubility =  }}
| Section3 = {{Chembox Hazards
|   MainHazards = 
|   FlashPt = 
|   Autoignition =  }}
}}
'''二茂铍'''是一种金属有机化合物，化学式为Be(C<sub>5</sub>H<sub>5</sub>)<sub>2</sub>，它最初在1959年被制得。<ref>{{cite journal|journal=European Journal of Inorganic Chemistry|volume=2005|issue=16|language=en|issn=1434-1948|date=2005-08|pages=3197–3206|doi=10.1002/ejic.200500329|url=http://doi.wiley.com/10.1002/ejic.200500329|title=Recent Developments in the Chemistry of Beryllocenes|accessdate=2020-09-29|author=Rafael Fernández, Ernesto Carmona}}</ref>

==制备==
二茂铍可由[[氯化铍]]和[[环戊二烯基钠]]在[[苯]]或[[乙醚]]中反应制得：<ref name=syn>{{cite journal|journal=Chemische Berichte|volume=92|issue=2|language=de|date=1959-02|pages=482–486|doi=10.1002/cber.19590920233|url=http://doi.wiley.com/10.1002/cber.19590920233|title=Über Aromatenkomplexe von Metallen, XXV. Di-cyclopentadienyl-beryllium|accessdate=2020-09-29|author=Ernst Otto Fischer, Hermann P. Hofmann}}</ref>
:<math>\mathrm{BeCl_2 +\ 2\ Na(C_5H_5)\ \xrightarrow[]{Et_2O} Be(C_5H_5)_2 + 2\ NaCl }</math>

==性质==
二茂铍在水中剧烈反应，生成[[氢氧化铍]]和[[环戊二烯]]。<ref name=syn />有文献报道它理论上可以和[[铍]]发生放热反应，生成C<sub>5</sub>H<sub>5</sub>BeBeC<sub>5</sub>H<sub>5</sub>。<ref>{{cite journal|last1=Xie|first1=Yaoming|last2=Schaefer|first2=Henry F.|last3=Jemmis|first3=Eluvathingal D.|title=Characteristics of novel sandwiched beryllium, magnesium, and calcium dimers: C<sub>5</sub>H<sub>5</sub>BeBeC<sub>5</sub>H<sub>5</sub>, C<sub>5</sub>H<sub>5</sub>MgMgC<sub>5</sub>H<sub>5</sub>, and C<sub>5</sub>H<sub>5</sub>CaCaC<sub>5</sub>H<sub>5</sub>|url=https://archive.org/details/sim_chemical-physics-letters_2005-02-04_402_4-6/page/n135|journal=Chemical Physics Letters|volume=402|issue=4-6|year=2005|pages=414–421|issn=00092614|doi=10.1016/j.cplett.2004.11.106}}</ref>
==参考文献==
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{{铍化合物}}
{{茂金属}}
[[Category:茂金属]]
[[Category:有机铍化合物]]
[[Category:1950年代发现的物质]]