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Acta Cryst. (2012). E68, m1320
[ doi:10.1107/S1600536812040925 ]

Bis(2,4,6-trimethylpyridinium) tetrabromidozincate

B. F. Ali, S. F. Haddad and R. Al-Far

Abstract: In the title compound, (C8H12N)2[ZnBr4], the coordination geometry of the anion is approximately tetrahedral. The Zn-Br bond lengths range from 2.3901 (19) to 2.449 (2) Å and the Br-Zn-Br angles range from 107.09 (8) to 112.48 (8)°. In the crystal, each [ZnBr4]2- anion is connected to four cations through two N-H...Br and two C-H...Br hydrogen bonds, forming two-dimensional ...(cation)2...anion...(cation2)... sheets parallel to the bc plane. Within each sheet, the anions are arranged in stacks with no significant inter-anion Br...Br interactions [the shortest being > 4.3 Å], while the cations are in chains, with weak [pi]-[pi] stacking interactions [centroid-centroid distance = 3.991 Å] between cations interacting with the same anion.


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