Fig. 1. Single-crystal structures of o-A12L3Zn2 and c-A12L3Zn2 cages. (a) Coordination geometry of ZnII, (b) a pair of enantiomeric Zn(N∧N)3 coordination units with opposite Λ- or Δ-stereo-configurations, (c) ΛΛ-enantiomeric cage in o-A12L3Zn2, (d) ΛΛ-enantiomeric cage in c-A12L3Zn2 (grey for C, blue for N, yellow for S, and cyan for Zn, the closed PADTE-lateral shown in shadow, and H atoms, solvents and counter anions omitted for clarity).
