Self- and hetero-recognition in the guest-controlled assembly of Pd(ii)-linked cages from two different ligands

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Abstract
The equilibration of cage-like receptors, M3(L1)2 + M3(L2)2 ⇌ 2 M3(L1)(L2), was efficiently controlled by appropriate guest addition: large (spherical) or small (flat) guests stabilized the homoleptic cages (M3(L1)2 or M3(L2)2) while medium-sized guests preferred the heteroleptic cage (M3(L1)(L2)).