TY - JOUR
T1 - Selective Ion Exchange in Supramolecular Channels in the Crystalline State
AU - Ichihashi, Katsuya
AU - Konno, Daisuke
AU - Maryunina, Kseniya Yu
AU - Inoue, Katsuya
AU - Toyoda, Kazuhiro
AU - Kawaguchi, Shogo
AU - Kubota, Yoshiki
AU - Tatewaki, Yoko
AU - Akutagawa, Tomoyuki
AU - Nakamura, Takayoshi
AU - Nishihara, Sadafumi
N1 - Funding Information:
This study was supported by a Grant-in-Aid for Scientific Research from the Japan Society for the Promotion of Science (JSPS), KAKENHI (Nos. JP16H04223, JP16K14101, JP24350095, JP25220803, JP17J02578, JP24510154, and JP16K04866), and the JSPS Core-to-Core Program, A. Advanced Research Networks. This research was also supported by Adaptable and Seamless Technology Transfer Program through Target-driven R&D (A-STEP) (No. VP30318089083) from Japan Science and Technology Agency (JST). This work was also performed under the aegis of the Canon Science Promotion Foundation, Murata Science Foundation, Casio Science Promotion Foundation, and a Cooperative Research Program of “Network Joint Research Center for Materials and Devices.” The synchrotron radiation experiments were performed at the BL02B2 of SPring-8 with approval of the Japan Synchrotron Radiation Research Institute (JASRI; Proposal Nos. 2014A1645 and 2014B2049). We thank Yasuhiro Shibata, the Natural Science Center for Basic Research and Development (N-BARD), Hiroshima University, for performing the EPMA measurements.
Publisher Copyright:
© 2019 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim
PY - 2019/3/22
Y1 - 2019/3/22
N2 - 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 (H 2 O) 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.
AB - 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 (H 2 O) 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.
KW - ion channels
KW - ion exchange
KW - lithium
KW - magnetic properties
KW - solid-state structures
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U2 - 10.1002/anie.201813709
DO - 10.1002/anie.201813709
M3 - Article
C2 - 30673160
AN - SCOPUS:85060983352
SN - 1433-7851
VL - 58
SP - 4169
EP - 4172
JO - Angewandte Chemie - International Edition
JF - Angewandte Chemie - International Edition
IS - 13
ER -