Acta Crystallographica Section E

Structure Reports Online

Volume 68, Part 12 (December 2012)

organic compounds

Acta Cryst. (2012). E68, o3349    [ doi:10.1107/S1600536812046247 ]

Quinolinium 8-hy­droxy-7-iodo­quinoline-5-sulfonate 0.8-hydrate

G. Smith

Abstract: In the crystal structure of the title hydrated quinolinium salt of ferron (8-hy­droxy-7-iodo­quinoline-5-sulfonic acid), C9H7N+·C9H5INO4S-·0.8H2O, the quinolinium cation is fully disordered over two sites (occupancy factors fixed at 0.63 and 0.37) lying essentially within a common plane and with the ferron anions forming [pi]-[pi]-associated stacks down the b axis [minimum ring centroid separation = 3.462 (6) Å]. The cations and anions are linked into chains extending along c through hy­droxy O-H...O and quinolinium N-H...O hydrogen bonds to sulfonate O-atom acceptors which are also involved in water O-H...O hydrogen-bonding inter­actions along b, giving a two-dimensional network.

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