期刊
CHEMICAL SCIENCE
卷 6, 期 2, 页码 1334-1340出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c4sc02799j
关键词
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资金
- Libyan government
- QREN, Mais Centro - Programa Operacional Regional do Centro and Fundo Europeu de Desenvolvimento Regional (FEDER)
Metal directed self-assembly has become a much-studied route towards complex molecular architectures. Although studies on mixed valence, MV, systems accessible through this approach are almost non-existent, the potential applications of such systems are very exciting as MV states provide the basis of a number of molecular-scale devices, including single electron wires and switches. Furthermore, while many novel hosts for guest ions and molecules have been developed through metal directed self-assembly, as these products tend to be kinetically labile, very few electrochemical studies have been reported. Herein, we report that the interplay between the binding properties and redox activity of a self-assembled trinuclear Ru-II macrocycle leads to an hitherto unreported phenomenon, in which access to specific MV states can be gated by host-guest chemistry. Thus, this system is the first in which MV states and the extent of electron delocalisation are switched by an ion without any change in electrochemical potential.
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