International Union of Crystallography, Acta Crystallographica Section E: Structure Reports Online, 4(62), p. o1362-o1364, 2006
DOI: 10.1107/s1600536806008191
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Naphthalene-1,5-diammonium diiodide crystallizes as the dihydrate, C10H12N2 2+·2I−·2H2O, and the crystal structure exhibits ionic layers separated by hydrocarbon layers. The naphthalene-1,5-diammonium cations in the hydrocarbon layers do not pack parallel to each other but alternate. In the ionic layer, the ammonium groups, the water molecules and the I− anions interact via hydrogen-bond bridges to form two infinite hydrogen-bonded chains.