Handcuff-like metallo-pseudorotaxanes consisting of tiara[5]arene wheels and dimeric silver trifluoroacetate axles.

The complexation between tiara[5]arene (T[5]) and silver trifluoroacetate affords a binuclear metallo-pseudorotaxane on account of multiple endo-cavity Ag η-arene interactions. Furthermore, two such enantiomeric [(CFCOAg)⊂T[5]] complexes are bridged by an extra (CFCOAg) dimer through exo-wall Ag η-arene coordination, resulting in a unique handcuff metallo-bis-pseudorotaxane structure in the solid state.