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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.
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Bruns et al. (2013) studied this question.
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