catena‐Poly[[silver(I)‐μ‐1,3‐bis(4‐pyridyl)propane] hemi(naphthalene‐1,5‐disulfonate) dihydrate]: a three‐dimensional metallo‐supramolecular sandwich lamellar network |
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Authors: | Dong‐Liang Wu Li Liu Geng‐Geng Luo |
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Abstract: | The title compound, {Ag(C13H14N2)](C10H6O6S2)0.5·2H2O}n, (I), features a three‐dimensional supramolecular sandwich architecture that consists of two‐dimensional cationic layers composed of polymeric chains of silver(I) ions and 1,3‐bis(4‐pyridyl)propane (bpp) ligands, linked by Ag...Ag and π–π interactions, alternating with anionic layers in which uncoordinated naphthalene‐1,5‐disulfonate (nds2−) anions and solvent water molecules form a hydrogen‐bonded network. The asymmetric unit consists of one AgI cation linearly coordinated by N atoms from two bpp ligands, one bpp ligand, one half of an nds2− anion lying on a centre of inversion and two solvent water molecules. The two‐dimensional {Ag(bpp)]+}n cationic and {(nds)·2H2O]2−}n anionic layers are assembled into a three‐dimensional supramolecular framework through long secondary coordination Ag...O interactions between the sulfonate O atoms and AgI centres and through nonclassical C—H...O hydrogen bonds. |
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