Bis(N,N'-dimethylthiourea-S)silver(I) Perchlorate and Tris(N,N'-dimethylthiourea-S)silver(I) Perchlorate

The structures of two different complexes of silver(I) and dimethylthiourea (dmtu) in the stoichiometric ratios 1:2, [Ag(C₃H₈N₂S)₂]ClO₄, and 1:3, [Ag(C₃H₈N₂S)₃]ClO₄, are described. The 1:2 complex consists of polynuclear cationic chains, whereas the 1:3 complex contains discrete [Ag₂(dmtu)₆]²⁺ cations. In both structures, Ag₂S₂ lozenges with different Ag-S bond lengths are observed and the perchlorate anions are connected to the cations by hydrogen bonds.

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