N-Trimethylsilylimidazole Hydrobromide at 133K

The title compound [1-(trimethylsilyl)imidazolium bromide, C₆H₁₃N₂Si⁺.Br^-] exhibits a `tetracoordinated' Si centre with bond angles deviating from the ideal tetrahedral geometry. The Si-N bond is the longest among those found in Me₃Si-N_imidazole fragments in the leterature. The protonated N atom forms a hydrogen bond to the Br^- ion, and one further contact less than 3 Å from the Br^- ion to an aromatic H atom can be found.

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