Potassium tetracarbonyliron hydride
Names
Other names
potassium tetracarbonylhydroferrate(1-)
Identifiers
3D model (JSmol)
  • InChI=1S/4CO.Fe.K.H/c4*1-2;;;/q;;;;-1;+1;
    Key: ZCWNHXZCHBPQAK-UHFFFAOYSA-N
  • [C-]#[O+].[C-]#[O+].[C-]#[O+].[C-]#[O+].[K+].[Fe][H-]
Properties
C4HFeKO4
Molar mass 207.991 g·mol−1
Appearance yellow solid
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Potassium tetracarbonyliron hydride is the inorganic salt with the formula K[HFe(CO)4]. A pale yellow solid, it is the potassium salt of [HFe(CO)4]−, which is the conjugate base of iron tetracarbonyl dihydride:[1][2]

H2Fe(CO)4 + KOH → K[HFe(CO)4] + H2O

Potassium tetracarbonyliron hydride is prepared by treating iron pentacarbonyl with potassium hydroxide:[3]

Fe(CO)5 + 2 KOH → K[HFe(CO)4] + KHCO3

Potassium tetracarbonyliron hydride is an intermediate in the synthesis of trisubstituted phosphine complexes:[4]

K[HFe(CO)4] + 3 PBu3 + EtOH → Fe(CO)2(PBu3)3 + EtOK + 2 CO + H2

References

  1. ↑ Brunet, Jean-Jacques (1998). "Coordination Chemistry of Mononuclear Iron Carbonyl Complexes". Coordination Chemistry Reviews. 178–180: 331–351. doi:10.1016/S0010-8545(98)00075-7.
  2. ↑ Brunet, J.J. (1990). "Tetracarbonylhydridoferrates, MHFe(CO)4: Versatile tools in Organic Synthesis and Catalysis". Chem. Rev. 90 (6): 1041–1059. doi:10.1021/cr00104a006.
  3. ↑ Brunet, J.-J.; Kindela, F. B.; Neibecker, D. (1992). "Trans-Tricarbonylbis(Phosphine)Iron(0) Complexes: One-Pot Syntheses from Pentacarbonyliron". trans-Tricarbonylbis(Phosphine)Iron(0) Complexes: One-Pot Syntheses from Pentacarbonyliron. Inorganic Syntheses. Vol. 29. pp. 151–156. doi:10.1002/9780470132609.ch36. ISBN 9780470132609.
  4. ↑ Brunet, J.-J.; Kindela, F. B.; Neibecker (1996). "One-Pot Synthesis of Dicarbonyltris(Phosphane)Iron(0) Complexes from Pentacarbonyliron". Inorganic Syntheses. Inorganic Syntheses. Vol. 31. pp. 202–210. doi:10.1002/9780470132623.ch30. ISBN 9780470132623.
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