Poly[[μ3-chlorido-bis(μ2-thiourea-κS)disilver(I)] nitrate]

The molecular structure of the title polymeric complex, {[Ag2Cl(CH4N2S)2]NO3}n, consists of a binuclear cationic complex and a nitrate counter-ion. The cationic complex contains two bridging thiourea (Tu) ligands and a triply bridging μ3-Cl anion. The latter is probably released from 2-aminoethanethiol hydrochloride during the synthesis. The coordination environment around the two AgI atoms is different; one is trigonal planar, being coordinated by two thiourea ligands through the S atoms and to one Cl− ion, while in the other the AgI atom is tetrahedrally coordinated by two thiourea ligands through the S atoms and to two Cl− ions. These units aggregate through the Cl− anion and the Tu S atoms, forming a chain propagating in [100]. In the crystal structure, the polymeric chains are linked via N—H⋯O and N—H⋯Cl hydrogen bonds, forming a double layer two-dimensional network propagating in (011).

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