Synthesis and properties of some hexacyanoferrates(II),(III) of divalent transition metals

Abstract

The formation and properties of cobalt, copper and cadmium hexacyanoferrates(II),(III) as well as of mixed cobalt-zinc and copper-zinc hexacyanoferrates(II),(III) were investigated in detail. In most cases the relevant role played by the preparative conditions is emphasized by analytical data and X-ray powder diffraction patterns. As a typical example, cobalt gives cubic hexacyanoferrates(II) containing Na + or H 3O + which changes structure on heating; cadmium may give five hexacyanoferrates(II) with differing metal and water content, and with different X-ray patterns.