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Cover Picture: Selective Ion Exchange in Supramolecular Channels in the Crystalline State (Angew. Chem. Int. Ed. 13/2019)
Author(s) -
Ichihashi Katsuya,
Konno Daisuke,
Maryunina Kseniya Yu.,
Inoue Katsuya,
Toyoda Kazuhiro,
Kawaguchi Shogo,
Kubota Yoshiki,
Tatewaki Yoko,
Akutagawa Tomoyuki,
Nakamura Takayoshi,
Nishihara Sadafumi
Publication year - 2019
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Reports
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201901957
Subject(s) - ion , ionic bonding , ion exchange , aqueous solution , supramolecular chemistry , chemistry , crown ether , ionic conductivity , inorganic chemistry , crystal structure , crystallography , electrode , organic chemistry , electrolyte
Selective ion exchange in the crystalline state was achieved with Li 2 ([18]crown‐6) 3 [Ni(dmit) 2 ] 2 (H 2 O) 4 as reported by S. Nishihara and co‐workers in their Communication on page 4169 ff. When this crystal was soaked in an aqueous solution containing K + ions, the Li + ions in the crystal were completely exchanged with K + ions through the crown‐ether‐based supramolecular channels. In mixed solutions containing K + and Na + /Li + ions, the Li + ions were selectively replaced by K + ions. The ion exchange induced remarkable changes in the magnetic properties and the ionic conductivity.