Reversible Photoswitching of Donor–Acceptor Stenhouse Adducts in Water

Adamantane-substituted donor–acceptor Stenhouse adducts (DASA) form highly stable host–guest complexes with cucurbit[n]urils (n = 7, 8) in water. These assemblies show kinetic stabilization of the colored linear form and, remarkably, exhibit reversible T-type photoswitching in water. These so far elusive features for first-generation DASA reveal a strategy for their potential use in biorelevant contexts.金刚烷取代的供体-受体斯滕豪斯加合物（donor–acceptor Stenhouse adducts, DASA）可在水相中与葫芦[n]脲（cucurbit[n]urils，n=7、8）形成高度稳定的主客体复合物。该类组装体可对有色线型结构实现动力学稳定作用，且尤为值得关注的是，其在水相中展现出可逆T型光开关行为。对于第一代DASA而言，这些迄今为止尚未被发现的特性，为其在生物相关场景中的潜在应用提供了可行策略。