ChemInform Abstract: New Compounds Bearing [M(S2O7)3]2‐ Anions (M: Si, Ge, Sn): Syntheses and Characterization of A2[Si(S2O7)3] (A: Na, K, Rb), A2[Ge(S2O7)3] (A: Li, Na, K, Rb, Cs), A2[Sn(S2O7)3] (A: Na, K), and the Unique Germanate Hg2[Ge(S2O7)3]Cl2 with Cationic 1∞[HgCl2/2]+ Chains. Issue 4 (31st January 2013)