Diiron silicide
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| IUPACName = Diiron silicide
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|Section1={{Chembox Identifiers
| CASNo =
| CASNo_Ref = {{cascite|correct|CAS}}
| PubChem = 24945630
| InChI =1S/2Fe.Si
| InChIKey =JQEFXLZKSTUUEC-UHFFFAOYSA-N
| SMILES =[Si].[Fe].[Fe]
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| ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}}
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|Section2={{Chembox Properties
| Formula = Fe2Si
| MolarMass = 139.78 g/mol
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|Section3={{Chembox Structure
| CrystalStruct = Trigonal (Ni2Al-type){{cite journal|last1=Khalaff|first1=K.|last2=Schubert|first2=K.|title=Kristallstruktur von Fe2Si(h)|journal=Journal of the Less Common Metals|volume=35|issue=2|year=1974|pages=341–345|doi=10.1016/0022-5088(74)90247-1}}
| SpaceGroup = P{{overline|3}}m1 (No. 161), hP6
| LattConst_a = 0.281 nm
| LattConst_b = 0.281 nm
| LattConst_c = 0.281 nm
| UnitCellFormulas = 1
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|Section7={{Chembox Hazards
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| FlashPt = Non-flammable
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|Section8={{Chembox Related
| OtherAnions =
| OtherCations =Dicobalt silicide
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Diiron silicide (Fe2Si) is an intermetallic compound, a silicide of iron. It occurs in cosmic dust as the mineral hapkeite. It is a non-stoichiometric compound where the Fe:Si ratio depends on the sample preparation. A related compound Fe5Si3 occurs in nature as the mineral xifengite.
See also
References
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{{Iron compounds}}
{{Silicides}}