Roussin's red salt

Roussin's red salt
Names
IUPAC name
potassium tetranitrosyl-di-μ-sulfidodiiron(Fe–Fe)(2–)
Other names
Ferrate(2-), tetranitrosyldi-mu-thioxodi-, (Fe-Fe), dipotassium
Identifiers
3D model (JSmol)
ChemSpider
  • InChI=1S/2Fe.4NO.2S/c;;4*1-2;;/q;;4*+1;2*-2
    Key: HAJABACXLZMFIH-UHFFFAOYSA-N
  • [K+].[K+].O=N[Fe-]12(N=O)S[Fe-]1(S2)(N=O)N=O
Properties
Fe2N4K2O4S2
Molar mass 374.04 g/mol
Appearance Dark red crystals
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references

Roussin's red salt is the inorganic compound with the formula K2[Fe2S2(NO)4]. This metal nitrosyl was first described by Zacharie Roussin in 1858, making it one of the first synthetic iron-sulfur clusters.

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