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Acta Cryst. (2008). E64, m751-m752 [ doi:10.1107/S1600536808012336 ]
Abstract: The asymmetric unit of the title compound, (C5H8N2)[HgBr4]·H2O, consists of one cation, one anion and one water molecule. The anion exhibits a distorted tetrahedral arrangement about the Hg atom. The crystal structure contains alternating sheets of cations (in the ac plane) and stacks of anions. Several strong hydrogen-bonding interactions (pyN-H
Br and C-HBr; py is pyridine), along with O-HBr interactions, connect the sheets of cations to the stacks of anions. Cation-cation ![[pi]](/logos/entities/pi_rmgif.gif)
- stacking is also present (CC distances in the range 3.424-3.865 Å). The shortest BrBr distance is 3.9527 (9) Å.
Online 3 May 2008
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