Acta Cryst. (2005). E61, m1880-m1882  [ doi:10.1107/S1600536805026966 ]

catena-Poly[[(1H-benzimidazole-N)iodomercury(II)]--iodo]

Y.-H. Shen, J.-G. Liu and D.-J. Xu

Abstract: In the title polymeric complex, [HgI₂(C₇H₆N₂)]_n, the Hg^II atom is coordinated by one benzimidazole (bzim) and three I^- anions with a distorted tetrahedral geometry; one I^- anion is in a monodentate coordination mode and the other two are bridging. The two bridging Hg-I bond distances differ significantly [2.7420 (7) and 3.0543 (7) Å]. The face-to-face separation of 3.31 (3) Å between the mean planes of parallel bzim ligands and the partially overlapped arrangement indicate the existence of - stacking.

Online 31 August 2005

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