Citation: M\"uller, Achim; Das, Samar K.; B\"ogge, Hartmut; Beugholt, Christian; Schmidtmann, Marc (1999). Assembling nanosized ring-shaped synthons to an anionic layer structure based on the synergetically induced functional complementarity of their surface-sites: Na21[MoVI126MoV28O462H14(H2O)54(H2PO2)7]·xH2O (x ≈ 300). Chemical Communications, , pp. 1035-.