查看“︁二碘甲硅烷”︁的源代码

{{Chembox
| ImageFile=Diiodsilan.svg
|Section1={{Chembox Identifiers
| CASNo= 13760-02-6
| EC-number= 626-077-6
| PubChem         = 139466
|SMILES=I[SiH2]I
}}
|Section2={{Chembox Properties
| Appearance= 无色液体<ref name="William M. Haynes">{{cite book| author=William M. Haynes | title=CRC Handbook of Chemistry and Physics, 93rd Edition  | publisher=CRC Press | ISBN=978-1-4398-8050-0 | date=2016  | page=87 }}</ref>
|Si=1|H=2|I=2
| Density= 2.79 g·cm<sup>−3</sup><ref name="Ehud Keinan">{{cite book|author=Ehud Keinan, Cynthia K. McClure, Pranab K. Mishra|title=Encyclopedia of Reagents for Organic Synthesis|publisher=John Wiley & Sons, Ltd|date=2001-01-01|chapter=Diiodosilane|page=|ISBN=978-0-470-84289-8|DOI=10.1002/047084289X.rd243}}</ref>
| MeltingPt= −1 °C<ref name="William M. Haynes" />
| BoilingPt= 150 °C<ref name="William M. Haynes" />
|Solubility=
}}
|Section8={{Chembox Related
|OtherCpds=[[甲硅烷]]<br />[[一碘甲硅烷]]<br />[[三碘甲硅烷]]<br />[[四碘化硅]]
|OtherCations=[[二碘甲烷]]<br />[[二碘甲锗烷]]
|OtherAnions=[[二氟甲硅烷]]<br />[[二氯甲硅烷]]<br />[[二溴甲硅烷]]
}}
}}

'''二碘甲硅烷'''是一种卤代[[硅烷]]，化学式 SiH<sub>2</sub>I<sub>2</sub>。

== 制备 ==
二碘甲硅烷可以由[[苯基甲硅烷]]和[[碘]]在 -20&nbsp;°C 的[[乙酸乙酯]]催化下反应<ref name="Ehud Keinan" />，或是[[二苯基甲硅烷]]和过量的[[碘化氢]]在 −40&nbsp;°C下反应而成。<ref name="brauer">[[Georg Brauer]] (Hrsg.), unter Mitarbeit von [[Marianne Baudler]] u.&nbsp;a.: ''Handbuch der Präparativen Anorganischen Chemie.'' 3., umgearbeitete Auflage. Band II, Ferdinand Enke, Stuttgart 1978, ISBN 3-432-87813-3, S. 687.</ref>
:<math>\mathrm{(C_6H_5)_2SiH_2 + 2 \ HI \longrightarrow SiH_2I_2 + 2 \ C_6H_6}</math>

== 性质==
二碘甲硅烷是一种无色液体，极易溶于[[碳氢化合物]]和氯代溶剂，和含氮或含氧的溶剂反应。<ref name="Ehud Keinan" /><ref name="brauer" />在气态下，Si–I 键长是 242.3 [[皮米|pm]]，I–Si–I 的键角是 110.8°。<ref name="DOI10.1016/S0022-2860(02)00354-X">Aida Ben Altabef, Heinz Oberhammer: ''Gas phase structure of diiodosilane SiH2I2.'' In: ''Journal of Molecular Structure.'' 641, 2002, S.&nbsp;259, {{DOI|10.1016/S0022-2860(02)00354-X}}.</ref>

== 用处==
二碘甲硅烷可以用来制备{{le|氟代多巴|Fluorodopa}} (<sup>18</sup>F-DOPA)<ref name="Sigma">{{Sigma-Aldrich|Aldrich|id=339873|Name=Diiodosilane, contains copper as stabilizer|Abruf=2016-12-13}}</ref><ref name="Michael J. Welch, Carol S. Redvanly">{{cite book| author=Michael J. Welch, Carol S. Redvanly | title=Handbook of Radiopharmaceuticals Radiochemistry and Applications | url=https://archive.org/details/handbookradiopha00welc_000 | publisher=John Wiley & Sons | ISBN=978-0-471-49560-4 | date=2003 | page=[https://archive.org/details/handbookradiopha00welc_000/page/n279 265] }}</ref>，也用于有机合成。<ref name="Francis A. Carey, Richard J. Sundberg">{{cite book| author=Francis A. Carey, Richard J. Sundberg | title=Advanced Organic Chemistry Part B: Reaction and Synthesis | publisher=Springer Science & Business Media | ISBN=978-0-387-68354-6 | date=2010 | page=240 }}</ref><ref name="Livius Cotarca, Heiner Eckert">{{cite book| author=Livius Cotarca, Heiner Eckert | title=Phosgenations A Handbook | publisher=John Wiley & Sons | ISBN=978-3-527-60503-3 | date=2006 | page=286 }}</ref><ref>{{cite book| author= | title=Science of Synthesis: Houben-Weyl Methods of Molecular Transformations Vol. 18 Four Carbon-Heteroatom Bonds | publisher=Georg Thieme Verlag | ISBN=3-13-171911-7 | date=2014  | page=553 }}</ref>

== 参考资料==
<references />

{{硅化合物}}

[[Category:硅-碘化合物]]
[[Category:卤代硅烷]]