Ammonium chlorate palladium chloride

Divalent Pd forms many planar complexes with a coordination number of 4. The tetrachlorides aie quite soluble, When a solution of palladium(II) chloride is oxidized with chlorite or chlorate ion, Pd(IV) is formed, which has a coordination number of 8, The addition of NH4Q to such a solution precipitates ammonium hexachloropalladate(IV) as a red compound. It is somewhat less stable than the platinum analog. 

---