Acta Cryst. (2007). E63, m2619  [ doi:10.1107/S1600536807046880 ]

catena-Poly[tetramethylammonium [argentate(I)-di--bromido]]

X. Liu

Abstract: The title compound, {(C₄H₁₂N)[AgBr₂]}_n, is isomorphous with its chloride analogue [Helgesson, Josefsson & Jagner (1988). Acta Cryst. C44, 1729-1731]. It displays a one-dimensional ₁[Ag₂Br₄]_n^2n- anionic chain structure accompanied by isolated tetramethylammonium cations. All the crystallographically independent non-H atoms lie on special positions, namely Ag on 2mm, Br on mm2 or m2m, N on mm2, and C on sites of symmetry m_a or m_b. The tetramethylammonium cations reside between these anionic chains, with weak C-HBr hydrogen-bonding interactions forming a layer perpendicular to the c axis; these layers stack together along the c direction merely by van der Waals forces.

Online 29 September 2007

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