The addition of a metastable-state photoacid to solutions containing metal–ligand assemblies renders the systems light responsive. Upon irradiation, proton transfer from the photoacid to the ligand is observed, resulting in disassembly of the metallasupramolecular structure. In the dark, the process is fully reversed. Light-induced switching was demonstrated for six different metal–ligand assemblies containing PdII, PtII or RuII complexes and bridging polypyridyl ligands. The methodology allows liberating guest molecules with light.
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机译:在含有金属-配体组装体的溶液中添加亚稳态光酸使系统具有光响应性。照射后,观察到质子从光酸转移到配体,导致金属超分子结构的分解。在黑暗中,该过程完全相反。在包含Pd II sup>,Pt II sup>或Ru II sup>配合物和桥联吡啶基配体的六个不同的金属-配体组装体中证明了光诱导的转换。该方法允许光释放客体分子。
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