The ultrasonic reaction of AgNO(3), 4,4'-bipyridine (bipy) and naphthalene-2,6-dicarboxylic acid (H(2)NDC) gives rise to the title compound, {[Ag(2)(C(10)H(8)N(2))(2)](C(12)H(6)O(4)).4H(2)O}(n). The NDC dianion is located on an inversion centre. The Ag(I) centre is coordinated in a linear manner by two N atoms from two bipy ligands. The crystal structure consists of one-dimensional Ag(I)-bipy cationic chains and two-dimensional NDC-H(2)O anionic sheets, constructed by coordination bonds and supramolecular interactions, respectively.

The title compound, [AgCl(C(10)H(8)N(2))](n), was synthesized by reaction of silver(I) chloride with 4,4'-bipyridine (bipy) under ammoniacal conditions. The crystal structure reveals that the Ag and Cl atoms lie on twofold axes, while the bipy ligands also sit across twofold axes. The Ag(I) center is five-coordinated by three Cl atoms and two N atoms from two symmetry-related bipy ligands in a distorted square-pyramidal geometry. The complex contains one-dimensional Ag(I)-bipy chains, which are further linked by rarely formed T-frame mu(3)-Cl to form a two-dimensional bilayer structure.