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Herein we report the photocontrol of cucurbit8uril (CB8)-mediated supramolecular polymerization of azobenzene-containing monomers. The CB8 polymers were characterized both in solution and in the solid state. These host-guest complexes can be reversibly switched between highly thermostable photostationary states. Moreover, a remarkable stabilization of Z-azobenzene was achieved by CB8 complexation, allowing for structural characterization in the solid state.
Barrio et al. (Tue,) studied this question.