title: Similar environments for the ClO4-, HSO4- and H2PO4- anions offered by strychnine self-assemblies.
abstract: In strychninium chlorate(VII) monohydrate, C21H23N2O2+.ClO4-.H2O, strychninium hydrogensulfate(VI) dihydrate, C21H23N2O2+.HSO4-.2H2O, and strychninium dihydrogenphosphate(V) dihydrate, C21H23N2O2+.H2PO4-.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.
authors.affiliation: Faculty of Chemistry, University of Wrocław, ul. F. Joliot-Curie 14, 50-383 Wrocław, Poland. bialonsk@wcheto.chem.uni.wroc.pl
authors.forename: Agata
authors.initials: A
authors.lastname: Białońska
authors.forename: Zbigniew
authors.initials: Z
authors.lastname: Ciunik