Acta Cryst. (2002). E58, m583-m585  [ doi:10.1107/S1600536802017154 ]

Nicotinium tetrachlorocuprate(II)

S.-N. Choi, Y.-M. Lee, H.-W. Lee, S. K. Kang and Y.-I. Kim

Abstract: The structure of the title compound, (C₁₀H₁₆N₂)[CuCl₄], comprises two crystallographically non-equivalent tetrahedral [CuCl₄]^2- anions, each of which is linked to two doubly protonated nicotinium cations via hydrogen bonds. There are two different types of hydrogen-bonding interactions present, namely (i) the protonated pyridinium groups exclusively form bifurcated hydrogen bonds to two cis-Cl atoms of both [CuCl₄]^2- units and (ii) the protonated pyrrolidinium groups exclusively form a two-center hydrogen bond with a chloride of both [CuCl₄]^2- units.

Online 27 September 2002

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