Acta Crystallographica Section C

Crystal Structure Communications

Volume 61, Part 3 (March 2005)

organic compounds

gd1357 scheme

Acta Cryst. (2005). C61, o161-o164 [doi:10.1107/S0108270105001034]

Similar environments for the ClO₄^-, HSO₄^- and H₂PO₄^- anions offered by strychnine self-assemblies

A. Bialonska and Z. Ciunik

Abstract: In strychninium chlorate(VII) monohydrate, C₂₁H₂₃N₂O ${}_{2}^{\,+}$ ·ClO ${}_{4}^{\,- }$ ·H₂O, strychninium hydrogensulfate(VI) dihydrate, C₂₁H₂₃N₂O ${}_{2}^{\,+}$ ·HSO ${}_{4}^{\,- }$ ·2H₂O, and strychninium dihydrogenphosphate(V) dihydrate, C₂₁H₂₃N₂O ${}_{2}^{\,+}$ ·H₂PO ${}_{4}^{\,- }$ ·2H₂O, the strychninium cations form bilayer sheets separated by water-anion sheets. The strychnine bilayer sheets in the three compounds are similar to one another. In all three structures, the surfaces of the cation and water-anion sheets exhibit donor-acceptor matching.

Formula: C₂₁H₂₃N₂O₂⁺·ClO₄^-·H₂O, C₂₁H₂₃N₂O₂⁺·HSO₄^-·2H₂O and C₂₁H₂₃N₂O₂⁺·H₂PO₄^-·2H₂O


	Structure factor file (CIF format) (198.1 kbytes) Contains datablock I

	Structure factor file (CIF format) (196.5 kbytes) Contains datablock II

	Structure factor file (CIF format) (164.4 kbytes) Contains datablock III

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