查看“︁二碘化镱”︁的源代码

{{NoteTA|G1=Chemistry}}
{{Chembox
|ImageFile=Kristallstruktur Cadmiumiodid.png
| OtherNames = 碘化亚镱
|Section3={{Chembox Structure
| CrystalStruct= [[三方晶系]]
| SpaceGroup= P{{overline|3}}m1 (No. 164)
| LattConst_a= 448 pm
|LattConst_c = 696 pm<ref>{{cite journal|journal=Zeitschrift für anorganische und allgemeine Chemie|volume=241|issue=2-3|language=en|date=1939-05-05|pages=239–258|doi=10.1002/zaac.19392410211|url=https://onlinelibrary.wiley.com/doi/10.1002/zaac.19392410211|title=Messungen an zwei- und vierwertigen Verbindungen der seltenen Erden. VII. Über die Struktur einiger Dihalogenide|accessdate=2022-10-19|author=Walter Döll, Wilhelm Klemm|archive-date=2022-12-31|archive-url=https://web.archive.org/web/20221231143351/https://onlinelibrary.wiley.com/doi/10.1002/zaac.19392410211|dead-url=no}}.</ref>
}}
|Section1={{Chembox Identifiers
| CASNo= 19357-86-9
| EC-number= 687-891-5
| PubChem          = 4227090
|SMILES=[I-].[I-].[Yb+2]
}}
|Section2={{Chembox Properties
| Appearance= 黄色固体<ref name="Yb_1931"/>
|Yb=1|I=2
| MeltingPt= 780 °C（分解）<ref name="Yb_1931"/>
}}
}}

'''二碘化镱'''是[[镱]]的一种[[碘化物]]，化学式YbI<sub>2</sub>。它是黄色固体。

== 制备 ==
二碘化镱可以由[[三碘化镱]]热分解而成：<ref name="Yb_1931">{{cite journal|journal=Zeitschrift für anorganische und allgemeine Chemie|volume=201|issue=1|language=en|date=1931-11-10|pages=207–220|doi=10.1002/zaac.19312010119|url=https://onlinelibrary.wiley.com/doi/10.1002/zaac.19312010119|title=Zur Kenntnis der Halogenide der seltenen Erden. V. Über die Halogenide des Ytterbiums|accessdate=2022-10-19|author=G. Jantsch, N. Skalla, H. Jawurek|archive-date=2022-10-19|archive-url=https://web.archive.org/web/20221019160905/https://onlinelibrary.wiley.com/doi/10.1002/zaac.19312010119|dead-url=no}}</ref>
:<math>\mathrm{2\ YbI_3\ \xrightarrow []{\Delta\ T}\ 2\ YbI_2\ +\ I_2}</math>

它也可以由金属镱和[[1,2-二碘乙烷]]在[[四氢呋喃]]里反应而成。<ref name="KAGAN_1980">{{cite journal|journal=Journal of the American Chemical Society|volume=102|issue=8|language=en|issn=0002-7863|date=1980-04|pages=2693–2698|doi=10.1021/ja00528a029|url=https://pubs.acs.org/doi/abs/10.1021/ja00528a029|title=Divalent lanthanide derivatives in organic synthesis. 1. Mild preparation of samarium iodide and ytterbium iodide and their use as reducing or coupling agents|accessdate=2022-10-19|author=P. Girard, J. L. Namy, H. B. Kagan|archive-date=2022-12-31|archive-url=https://web.archive.org/web/20221231140345/https://pubs.acs.org/doi/abs/10.1021/ja00528a029|dead-url=no}}.</ref>
:<math>\mathrm{Yb\ +\ ICH_2CH_2I\ \xrightarrow []{THF} \ YbI_2\ +\ H_2C=CH_2}</math>

== 性质 ==
二碘化镱是黄色固体，对空气和湿气非常敏感，会迅速被氧化成镱(III)。它和水反应产生氢气和碱式碘化物，和酸则剧烈反应。<ref name="Yb_1931"/>

== 用处==
和[[二碘化钐]]（SmI<sub>2</sub>）一样，二碘化镱也是有机化学试剂。<ref name="KAGAN_1980"/>

== 参考资料==
<references/>

== 扩展阅读==
* {{cite journal | last=Kagan | first=H.B. | last2=Namy | first2=J.L. | title=Tetrahedron report number 213 | url=https://archive.org/details/sim_tetrahedron_1986_42_24/page/6573 | journal=Tetrahedron | publisher=Elsevier BV | volume=42 | issue=24 | year=1986 | issn=0040-4020 | doi=10.1016/s0040-4020(01)82098-6 | pages=6573–6614}}
* {{cite journal | last=Steel | first=Patrick G. | title=Recent developments in lanthanide mediated organic synthesis | journal=Journal of the Chemical Society, Perkin Transactions 1 | publisher=Royal Society of Chemistry (RSC) | issue=21 | date=2001-10-18 | issn=1472-7781 | doi=10.1039/a908189e | pages=2727–2751}}

{{镱化合物}}
{{碘化合物}}

[[Category:镱化合物]]
[[Category:碘化物]]
[[Category:二价镧系元素化合物]]