Acta Cryst. (2009). E65, m402  [ doi:10.1107/S1600536809007090 ]

Low-temperature rerefinement of nonmerohedrally twinned tripyridinium bis[tetrabromidoferrate(III)] bromide

S. W. Ng

Abstract: The asymmetric unit of the title double salt, (C₅H₆N)₃[FeBr₄]₂Br, consists of three pyridinium cations, two tetrahedral bromidoferrate(III) anions and a bromide anion. The three cations each form one N-HBr hydrogen bond to the bromide anion. The crystal under investigation was a non-merohedral twin, with a portion of 22% for the minor twin component.

Online 14 March 2009

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