Two new luminescent silver–organic frameworks, [Ag2(μ2-bpca)(μ3-PTA)2]n·2nH2O (1) and [Ag4(μ4-pma)(μ2-PTA)2(μ3-PTA)2]n·8nH2O (2), have been easily generated from silver(I) oxide, PTA and aromatic carboxylic acids [biphenyl-4,4′-dicarboxylic (H2bpca) or pyromellitic (H4pma) acid], thus opening up the use of PTA as a versatile N,P-building block in crystal engineering of 3D networks. The topological analysis of 1 reveals a binodal 3,4-connected underlying net with the ins (InS) topology, while 2 represents a tetranodal 3,3,4,4-connected net with a new topology.
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