europium hydride
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| ImageFile = EuH2_in_PbCl2.jpg
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| OtherNames = Europium(II) hydride
Europium dihydride
|Section1={{Chembox Identifiers
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| CASNo = 13814-78-3
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| PubChem = 165360237
| SMILES = [Eu+2].[H-].[H-]
| InChI = 1S/Eu.2H/q+2;2*-1
| InChIKey = YWDWTHOTGAGHBK-UHFFFAOYSA-N
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|Section2={{Chembox Properties
| Formula = EuH2
| MolarMass = 153.98
| Appearance = dark reddish powder
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|Section3={{Chembox Structure
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|Section4={{Chembox Thermochemistry
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|Section7={{Chembox Hazards
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|Section8={{Chembox Related
| OtherAnions = Europium(II) oxide
Europium(II) hydroxide
Europium(II) chloride
| OtherCations = samarium hydride
gadolinium hydride
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| OtherCompounds = Europium(III) hydride{{Cite journal|last1=Matsuoka|first1=T.|last2=Fujihisa|first2=H.|last3=Hirao|first3=N.|last4=Ohishi|first4=Y.|last5=Mitsui|first5=T.|last6=Masuda|first6=R.|last7=Seto|first7=M.|last8=Yoda|first8=Y.|last9=Shimizu|first9=K.|last10=Machida|first10=A.|last11=Aoki|first11=K.|title=Structural and valence changes of europium hydride induced by application of high-pressure {{Chem|H|2}}|journal=Physical Review Letters|date=5 July 2011|volume=107|issue=2|url=http://journals.aps.org/prl/abstract/10.1103/PhysRevLett.107.025501#fulltext|access-date=19 November 2016|doi=10.1103/PhysRevLett.107.025501|bibcode=2011PhRvL.107b5501M|pmid=21797616|pages=025501|url-access=subscription}}}}
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Europium hydride is the most common hydride of europium with a chemical formula EuH2. In this compound, europium atom is in the +2 oxidation state and the hydrogen atoms are −1.{{cite book |author=洪广言 |series=现代化学基础丛书 |volume=36 |title=稀土化学导论 |location=北京 |publisher=科学出版社 |year=2014 |pages=57–59 |chapter=3.2.4 稀土氢化物 |isbn=978-7-03-040581-4 |language=zh |trans-title=Introduction to Rare Earth Chemistry |trans-chapter=Rare earth hydrides}} It is a ferromagnetic semiconductor.{{cite journal |last1=Bischof |first1=R. |last2=Kaldis |first2=E. |last3=Wachter |first3=P. |title=EuH2: A new ferromagnetic semiconductor |journal=Journal of Magnetism and Magnetic Materials |date=February 1983 |volume=31-34 |pages=255–256 |doi=10.1016/0304-8853(83)90239-1|bibcode=1983JMMM...31..255B }}
Production
Europium hydride can be produced by directly reacting europium and hydrogen gas:
: Eu + H2 → EuH2
Uses
EuH2 can be used as a source of Eu2+ to create metal-organic frameworks that have the Eu2+ ion.{{cite journal |last1=Rybak |first1=Jens-Christoph |last2=Hailmann |first2=Michael |last3=Matthes |first3=Philipp R. |last4=Zurawski |first4=Alexander |last5=Nitsch |first5=Jörn |last6=Steffen |first6=Andreas |last7=Heck |first7=Joachim G. |last8=Feldmann |first8=Claus |last9=Götzendörfer |first9=Stefan |last10=Meinhardt |first10=Jürgen |last11=Sextl |first11=Gerhard |last12=Kohlmann |first12=Holger |last13=Sedlmaier |first13=Stefan J. |last14=Schnick |first14=Wolfgang |last15=Müller-Buschbaum |first15=Klaus |title=Metal–Organic Framework Luminescence in the Yellow Gap by Codoping of the Homoleptic Imidazolate ∞3[Ba(Im)2] with Divalent Europium |journal=Journal of the American Chemical Society |date=29 April 2013 |volume=135 |issue=18 |pages=6896–6902 |doi=10.1021/ja3121718|pmid=23581546 }}
References
{{reflist}}
{{europium compounds}}
{{Hydrides by group}}
Category:Europium(II) compounds