Acta Cryst. (2005). E61, o1052-o1054  [ doi:10.1107/S1600536805007993 ]

Redetermination of adeninium dichloride: the question of centrosymmetry

T. C. Lewis and D. A. Tocher

Abstract: The low-temperature redetermination of adeninium(2+) dichloride, C₅H₇N₅²⁺·2Cl^-, obtained as part of an experimental polymorph screen on adenine, is reported here. The crystal structure is shown to be centrosymmetric. Cations and anions are connected through N-HN and N-HCl hydrogen bonds [NN = 2.899 (2) Å and NCl = 3.0274 (14)-3.5155 (16) Å] to form sheets perpendicular to the b axis.

Online 25 March 2005

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