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The supramolecular architecture of tris(naphthalene‐1,5‐diaminium) bis(5‐aminonaphthalen‐1‐aminium) octakis[hydrogen (5‐carboxypyridin‐3‐yl)phosphonate]

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The asymmetric unit of the title compound, 3C10H12N2 2+·2C10H11N2 +·8C6H5NO5P, contains one and a half naphthalene‐1,5‐diaminium cations, in which the half‐molecule has inversion symmetry, one 5‐aminonaphthalen‐1‐aminium cation and four hydrogen (5‐carboxypyridin‐3‐yl)phosphonate anions. The crystal structure is layered and consists of hydrogen‐bonded anionic monolayers between which the cations are arranged. The acid monoanions are organized into one‐dimensional chains along the [101] direction via hydrogen bonds established between the phosphonate sites. (C)O—H...Npy hydrogen bonds (py is pyridine) crosslink the chains to form an undulating (010) monolayer. The cations serve both to balance the charge of the anionic network and to connect neighbouring layers via multiple hydrogen bonds to form a three‐dimensional supramolecular architecture.
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Document Type: Research Article

Publication date: September 15, 2012

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