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词条 Iron(II,III) sulfide
释义

  1. Crystal structure

  2. Magnetic and electronic properties

  3. References

  4. Further reading

{{chembox
| verifiedrevid = 427821486
|ImageFile1=
|IUPACName=
|OtherNames=Ferrous-ferric sulfide, greigite
|Section1 = {{Chembox Identifiers
| PubChem = 72720442
| ChemSpiderID = 34999896
| ChEBI = 86238
| CASNo = 12063-39-7
| StdInChI=1S/3Fe.4S/q+2;2*+3;4*-2
| StdInChIKey = UHUWQCGPGPPDDT-UHFFFAOYSA-N
| SMILES = [S-2].[S-2].[S-2].[S-2].[Fe+2].[Fe+3].[Fe+3]
|Section2 = {{Chembox Properties
| Formula=FeS·Fe2S3
| MolarMass= 295.805
| Appearance= Bluish-black, pinkish
| Density= 4.049 g/cm3
| MeltingPt=
| BoilingPt=
| Solubility=
}}

Iron(II,III) sulfide is a blue-black (sometimes pinkish) chemical compound of iron and sulfur with formula Fe3S4 or FeS·Fe2S3, which is much similar to iron(II,III) oxide. It occurs naturally as the sulfide mineral greigite and is magnetic. It is a bio-mineral produced by and found in magnetotactic bacteria. It is a mixed valence compound, featuring both Fe2+ and Fe3+ centers, in 1:2 ratio.

Crystal structure

The crystallographic unit cell is cubic, with space group Fd3m. The S anions form a cubic close-packed lattice, and the Fe cations occupy both tetrahedral and octahedral sites.[1][2]

{{Gallery
|title=Crystal structure of iron(II,III) sulfide projected along the [110] direction
|width=250
|align=center
|File:Greigite structure 110 SFe4 tetrahedra.png|Emphasis on the SFe4 tetrahedra.
|File:Greigite structure 110 FeS4 tetrahedra.png|Emphasis on the FeS4 tetrahedra
|File:Greigite structure 110 FeS6 octahedra.png|Emphasis on the FeS6 octahedra
}}

Magnetic and electronic properties

Like the related oxide magnetite (Fe3O4), iron(II,III) sulfide is ferrimagnetic, with the spin magnetic moments of the Fe cations in the tetrahedral sites oriented in the opposite direction as those in the octahedral sites, and a net magnetization. Both metal sites have high spin quantum numbers. The electronic structure of greigite is that of a half metal.[3][4]

References

1. ^{{cite book|editor1=Anthony, John W. |editor2=Bideaux, Richard A. |editor3=Bladh, Kenneth W. |editor4=Nichols, Monte C. |title= Handbook of Mineralogy|publisher= Mineralogical Society of America|place= Chantilly, VA, US|chapter-url=http://rruff.geo.arizona.edu/doclib/hom/greigite.pdf |chapter=Greigite |accessdate=December 5, 2011|isbn=978-0962209703 |volume=I (Elements, Sulfides, Sulfosalts)|year=1990}}
2. ^Vaughan, D. J.; Craig, J. R. “Mineral Chemistry of Metal Sulfides" Cambridge University Press, Cambridge: 1978. {{ISBN|0-521-21489-0}}.
3. ^{{cite journal|last1=Devey|first1=Anthony|first2=R.|last2=Grau-Crespo|first3=N.H.|last3=De Leeuw|title=Electronic and magnetic structure of Fe3S4: GGA+U investigation|journal=Physical Review B|year=2009|volume=79|pages=195126| doi=10.1103/PhysRevB.79.195126|issue=19|bibcode = 2009PhRvB..79s5126D }}
4. ^{{cite journal| title=The Curie temperature and magnetic exchange energy in half-metallic greigite Fe3S4|doi=10.1088/0031-8949/83/04/045702|year=2011|volume=83|pages=045702| last1=Wang| first1=Jun| last2=Cao| first2=Shi-He| last3=Wu| first3=Wei| last4=Zhao| first4=Guo-Meng| journal=Physica Scripta| issue=4|bibcode = 2011PhyS...83d5702W }}

Further reading

  • {{cite journal | last1 = Mann | first1 = Stephen | last2 = Sparks | first2 = Nicholas H. C. | last3 = Frankel | first3 = Richard B. | last4 = Bazylinski | first4 = Dennis A. | last5 = Jannasch | first5 = Holger W. | title = Biomineralization of ferrimagnetic greigite (Fe3S4) and iron pyrite (FeS2) in a magnetotactic bacterium | journal = Nature | volume = 343 | pages = 258 | year = 1990 | doi = 10.1038/343258a0 | issue=6255|bibcode = 1990Natur.343..258M }}
  • {{cite journal | last1 = Roberts | first1 = A | title = Magnetic properties of sedimentary greigite (Fe3S4) | journal = Earth and Planetary Science Letters | volume = 134 | issue = 3–4 | pages = 227–236 | year = 1995 | doi = 10.1016/0012-821X(95)00131-U | bibcode=1995E&PSL.134..227R}}
  • {{cite journal | last1 = Heywood | first1 = B. R. | last2 = Bazylinski | first2 = D. A. | last3 = Garratt-Reed | first3 = A. | last4 = Mann | first4 = S. | last5 = Frankel | first5 = R. B. | title = Controlled biosynthesis of greigite (Fe3S4) in magnetotactic bacteria | journal = Naturwissenschaften | volume = 77 | issue = 11 | pages = 536–538 | year = 1990 | doi = 10.1007/BF01139266|bibcode = 1990NW.....77..536H }}
  • {{cite journal | last1 = Reynolds | first1 = R. L. | last2 = Tuttle | first2 = M. L. | last3 = Rice | first3 = C. A. | last4 = Fishman | first4 = N. S. | last5 = Karachewski | first5 = J. A. | last6 = Sherman | first6 = D. M. | title = Magnetization and geochemistry of greigite-bearing Cretaceous strata, North Slope basin, Alaska | journal = American Journal of Science | volume = 294 | issue = 4 | pages = 485–528 | year = 1994 | doi = 10.2475/ajs.294.4.485 }}
  • {{cite journal | last1 = Snowball | first1 = Ian | last2 = Thompson | first2 = Roy | title = The occurrence of Greigite in sediments from Loch Lomond | journal = Journal of Quaternary Science | volume = 3 | issue = 2 | pages = 121–125 | year = 1988 | doi = 10.1002/jqs.3390030203|bibcode = 1988JQS.....3..121S }}
  • {{cite journal | last1 = Stanjek | first1 = H. | last2 = Fassbinder | first2 = J. W. E. | last3 = Vali | first3 = H. | last4 = Wagele | first4 = H. | last5 = Graf | first5 = W. | title = Evidence of biogenic greigite (ferrimagnetic Fe3S4) in soil | journal = European Journal of Soil Science | volume = 45 | issue = 2 | pages = 97–103 | year = 1994 | doi = 10.1111/j.1365-2389.1994.tb00490.x}}
  • {{cite journal | last1 = Hoffmann | first1 = V | title = Greigite (Fe3S4): magnetic properties and first domain observations | journal = Physics of the Earth and Planetary Interiors | volume = 70 | issue = 3–4 | pages = 288–301 | year = 1992 | doi = 10.1016/0031-9201(92)90195-2|bibcode = 1992PEPI...70..288H }}
  • {{cite journal | last1 = Fassbinder | first1 = Jörg W. E. | last2 = Stanjek | first2 = Helge | title = Magnetic properties of biogenic soil greigite (Fe3S4) | journal = Geophysical Research Letters | volume = 21 | issue = 22 | pages = 2349–2352 | year = 1994 | doi = 10.1029/94GL02506 | bibcode=1994GeoRL..21.2349F}}
{{Iron compounds}}{{Sulfides}}

2 : Iron(Ⅱ,Ⅲ) compounds|Sulfides
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