Experimental study demonstrates reversible photocontrol of a Michael addition within a coordination cage, highlighting a route to light-gated nanoreactors.
A heteroleptic [Pd2L2L'2]4+ coordination cage containing a photoswitchable azobenzene-derived ligand catalyzes the Michael addition reaction between methyl vinyl ketone and benzoyl nitromethane within its cavity. The correspond-ing homoleptic cages are catalytically inactive. The heteroleptic cage can be reversibly disassembled and reassembled using 530 nm light and 405 nm light, respectively, allowing catalysis within the cage to be switched ON and OFF at will.
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DiNardi et al. (2024) studied this question.
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