期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 58, 期 13, 页码 4169-4172出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201813709
关键词
ion exchange; ion channels; lithium; magnetic properties; solid-state structures
资金
- Japan Society for the Promotion of Science (JSPS), KAKENHI [JP16H04223, JP16K14101, JP24350095, JP25220803, JP17J02578, JP24510154, JP16K04866]
- JSPS Core-to-Core Program, A. Advanced Research Networks
- Adaptable and Seamless Technology Transfer Program through Target-driven R&D (A-STEP) from Japan Science and Technology Agency (JST) [VP30318089083]
Artificial ion channels are of increasing interest because of potential applications in biomimetics, for example, for realizing selective ion permeability through the transport and/or exchange of selected ions. However, selective ion transport and/or exchange in the crystalline state is rare, and to the best of our knowledge, such a process has not been successfully combined with changes in the physical properties of a material. Herein, by soaking single crystals of Li-2([18]crown-6)(3)[Ni(dmit)(2)](2)(H2O)(4) (1) in an aqueous solution containing K+, we succeeded in complete ion exchange of the Li+ ions in 1 with K+ ions in the solution, while maintaining the crystalline state of the material. This ion exchange with K+ was selectively conducted even in mixed solutions containing K+ as well as Na+/Li+. Furthermore, remarkable changes in the physical properties of 1 resulted from the ion exchange. Our finding enables not only the realization of selective ion permeability but also the development of highly sensitive biosensors and futuristic ion exchange agents, for example.
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