Acta Cryst. (2005). E61, m2534-m2535  [ doi:10.1107/S1600536805035804 ]

catena-Poly[N-[4-(1H-benzimidazol-3-yl)butyl]benzimidazolium [[diiodobismuthate(III)]-di-₂-iodo]]

Y.-Y. Niu, N. Zhang, H.-W. Hou and S. W. Ng

Abstract: In the title compound, {(C₁₈H₁₉N₄)[BiI₄]}_n, the organic cation is protonated on one of the two tertiary imino N atoms; the cation has inversion symmetry, involving disorder of this H atom. Adjacent cations are linked by a disordered N-HN hydrogen bond, forming a chain that runs along the a axis of the monoclinic unit cell. The anion exists as a polymeric chain that propogates along the c axis; the Bi atom lies on a special position of site symmetry 2.

Online 10 November 2005

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