“…Our group has contributed to the field of host-guest chemistry through developing M 2 L 3 and M 4 L 2 capsules [24][25][26][27] and their applications for molecular recognition, [24,28,29] supramolecular polymers [30][31] and a mediator of a chirality transfer. [32] Due to their sizable internal space, the M 4 L 2 capsules, which are composed of resorcinarene cavitands and four Cu + or Ag + cations, can uptake various molecules, such as 4,4'-diacetoxybiphenyl derivatives, [24] chiral trimeric structures composed of two acetic acid (G1) and (2S,3S)-or (2R,3R)-tartaric acid carrying two biphenyl groups (G2), [33] (R)-4,4'-diacetoxy-2,2'-dimethyl-biphenyl carrying two benzyl groups (G3), [24] and achiral 4,4'-diacetoxy biphenyl carrying two benzothiadiazole groups (G4) (Figure 1a). These guests enriched the chirality of the capsules and emitted CPL [33] by the host-guest complexation, demonstrating that 4,4'-diacetoxybiphenyl is an excellent platform for the guests.…”