Bis(tetrasulfato)palladate, [Pd(S(4)O(13))(2)](2-)

SOS: The first coordination compound containing polysulfate ligands was obtained under harsh conditions from the reaction of K(2)[PdCl(4)] and SO(3). The compound contains a Pd(2+) ion coordinated by two chelating tetrasulfate anions (see structure, Pd red, S yellow, O blue), which leads to a significant stabilization of the polysulfate anions compared to their uncoordinated analogues.