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1-Butyl-3-methylimidazolium tetrachloroferrate

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Magnetic liquid
1-Butyl-3-methylimidazolium tetrachloroferrate
Identifiers
CAS Number
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.203.250 Edit this at Wikidata
EC Number
  • 678-175-3
PubChem CID
CompTox Dashboard (EPA)
InChI
  • InChI=1S/C8H15N2.4ClH.Fe/c1-3-4-5-10-7-6-9(2)8-10;;;;;/h6-8H,3-5H2,1-2H3;4*1H;/q+1;;;;;+3/p-4Key: FYHLFBVHUIJIII-UHFFFAOYSA-J
SMILES
  • CCCCN1C=C(=C1)C.Cl(Cl)(Cl)Cl
Properties
Chemical formula C8H15Cl4FeN2
Molar mass 336.87 g·mol
Except where otherwise noted, data are given for materials in their standard state (at 25 °C , 100 kPa). Infobox references
Chemical compound

1-Butyl-3-methylimidazolium tetrachloroferrate is a magnetic ionic liquid. It can be obtained from 1-butyl-3-methylimidazolium chloride and ferric chloride. It has quite low water solubility.

Due to the presence of the high spin FeCl4 anion, the liquid is paramagnetic and a magnetic susceptibility of 40.6 × 10 emu g is reported. A simple small neodymium magnet suffices to attract the liquid in a test tube.

References

  1. Satoshi Hayashi; Hiro-o Hamaguchi (2004). "Discovery of a Magnetic Ionic Liquid FeCl4". Chemistry Letters. 33 (18): 1590–1591. doi:10.1246/cl.2004.1590.
  2. Satoshi Hayashi; Satyen Saha; Hiro-o Hamaguchi (2006). "A new class of magnetic fluids: bmim and nbmim ionic liquids". IEEE Transactions on Magnetics. 42 (1): 12–14. Bibcode:2006ITM....42...12H. doi:10.1109/TMAG.2005.854875. S2CID 42347833.


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