A novel supramolecular framework, catena-poly[[[aqua(2-phenylquinoline-4-carboxylato-κO)silver(I)]-μ-4,4'-bipyridine-κ(2)N:N'] dihydrate], {[Ag(C16H10NO2)(C10H8N2)(H2O)]·2H2O}n, has been synthesized and structurally characterized. The Ag(I) centres are four-coordinated and bridged by 4,4'-bipyridine (4,4'-bipy) ligands to form a one-dimensional Ag-bipy chain. The Ag-bipy chains are further linked together by intermolecular O-H···O and O-H···N hydrogen-bonding interactions between adjacent chains, resulting in a three-dimensional framework.
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