Fig. 5
Simultaneous photoswitching controls dynamic guest relocalization. a The molecular structures of tweezers 1 and 2 in different isomeric states, as well as their supramolecular complexes E-1.10 and Z-2.10 were obtained from quantum chemical modeling at the B3LYP/6-311 G(d,p) or B3LYP-GD3BJ/6-311 G(d,p) level of theory, respectively. b Selected region of the 1H NMR (400 MHz, 253 K, CDCl3) spectra acquired during titration of 10 with E-1. Chemical shifts of the indicative protons of 10, which change during the titration are assigned to the molecular structure of 10. c Selected region of the 1H NMR (400 MHz, 293 K, CDCl3) spectra acquired during simultaneous complementary photoswitching and dynamic guest relocation. The isolated signals of proton 11 (marked in the molecular structures of E-1.10 and E-2 in Fig. 5a) are shown. All different molecular species are assigned. 1: Pss of the 1:1 mixture of 1 and 2 at 435 nm. 2: Pss of the 1:1 mixture of 1 and 2 at 530 nm. 3: Pss of the 1:1 mixture of 1 and 2 at 435 nm in the presence of 0.6 equiv. of 10. 4: Pss of the 1:1 mixture of 1 and 2 at 530 nm in the presence of 0.6 equiv. of 10. 5 and 6: Repetition of the dynamic guest relocation experiments at 435 nm and 530 nm
