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Hydro­gen-bonded supramolecular motifs in 4,4′-bipyridinium 8-hydroxy-7-iodo­quinoline-5-sulfonate dihydrate

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In the title compound, C10H9N2+·C9H5INO4S·2H2O, the 4,4′-bi­pyridine mol­ecule is protonated at one of the pyridine N atoms. These moieties self-assemble into a supramolecular chain along the a axis through N—H…N hydrogen bonds. The quinolinol OH group acts as a donor with respect to a sulfonate O atom [O—H…O(sulfonate)] and acts as an acceptor with respect to a C—H group of ferron [C—H…O(hydroxy)], forming a supramolecular chain along the b axis. These two types of supramolecular chains (one type made up of bi­pyridine motifs and the other made up of sulfoxine motifs) interact via– stacking, generating a three-dimensional framework. These chains are further crosslinked by C—­H…O hydrogen bonds and O—H…O hydrogen bonds involving water mol­ecules.

Document Type: Research Article


Publication date: 2004-04-01

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