Fig. 5: Coordination-induced structural changes of (MPyVB)2@CB[8] units in U-CB[8]-MPyVB as compared to CB[8]-HMPyVB and the formation process of photoactive motif and photoinert motif.

a Molecular structure of CB[8]-HMPyVB. b Photoinert motif in U-CB[8]-MPyVB. c Photoactive motif in U-CB[8]-MPyVB. d Cartoon of the formation process of photoinert motif. e Cartoon of the formation mechanism of photoactive motif.