期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 61, 期 38, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.202205701
关键词
Metal-Template; Molecular Cage; Non-Equilibrium; Photoswitch; Self-Assembly
资金
- Australian Research Council [FT170100094]
A photoswitchable ligand based on azobenzene is self-assembled with palladium(II) ions to form a [Pd-2(E-L)(4)](4+) cage. Irradiation with 470 nm light results in the nearly complete transformation to a monomeric species [Pd(Z-L)(2)](2+), which can be reversed by irradiation with 405 nm light or heat. Self-assembly significantly improves the photoswitching selectivity and extends the thermal stability.
A photoswitchable ligand based on azobenzene is self-assembled with palladium(II) ions to form a [Pd-2(E-L)(4)](4+) cage. Irradiation with 470 nm light results in the near-quantitative switching to a monomeric species [Pd(Z-L)(2)](2+), which can be reversed by irradiation with 405 nm light, or heat. The photoswitching selectivity towards the metastable isomer is significantly improved upon self-assembly, and the thermal half-life is extended from 40 days to 850 days, a promising approach for tuning photoswitching properties.
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