REACTIONS OF THE AQUAPENTACYANOFERRATE(II) ION WITH 2-NITROSO-1-NAPHTHOL AND 2-NITROSO-1-NAPHTHOL-4-SULFONIC ACID

The aqua ligand of the aquapentacyanoferrate(II) ion was replaced by 2 -nitroso-1-naphthol and its sulphonate derivative giving the analogous mononuclear nitrosonaphtholpentacyanoferrate(II) complex in the first stage of the reaction. In the second stage, a cyano-bridged binuclear product was obtained and characterized as e(II)-mu-cyano-tricyanonitr osonaphtholferrate(II). The latter reaction was catalysed by mercury(I I) ions. The complexes were characterized on the basis of analytical, IR and W-vis spectral data and have in the solid state and in solution a predominately quinone oximic structure. The preparation of the tris (2-nitroso-1-naphthol) ferrate(II) complex is also reported.