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Acta Cryst. (2013). E69, o1108  [ doi:10.1107/S1600536813016176 ]

1,4,10,13-Tetraoxa-7,16-diazoniacyclooctadecane bis(1H-pyrrole-2-carboxylate)

F. Zeng and Z. Yin

Abstract: In the title salt, C12H28N2O42+·2C5H4NO2-, the 1,4,10,13-tetraoxa-7,16-diazacyclooctadecane dication possesses inversion symmetry. In the crystal, the pyrrole-carboxylate anions are linked via pairs of N-H...O hydrogen bonds, forming inversion dimers. These dimers are linked by the dications, via N-H...O hydrogen bonds, forming chains propagating along [110].

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