Figure 4
(a) Autostereographic projections (Katrusiak, 2001 ) of the ribbons formed by the Zn cations four-fold coordinated by Asp anions in ZnAsp2·1.5H2O and ZnAsp2·2H2O. Water molecules have been omitted for clarity. (b) The ZnAsp2·1.5H2O and ZnAsp2·2H2O structures projected down the ZnAsp2 ribbons. Water molecules are represented as red balls. H atoms have been omitted for clarity. |