Cover Picture: Selective Ion Exchange in Supramolecular Channels in the Crystalline State (Angew. Chem. Int. Ed. 13/2019). Issue 13 (21st February 2019)

• Record Type: Journal Article
• Authors: Ichihashi, Katsuya; Konno, Daisuke; Maryunina, Kseniya Yu.; Inoue, Katsuya; Toyoda, Kazuhiro; Kawaguchi, Shogo; Kubota, Yoshiki; Tatewaki, Yoko; Akutagawa, Tomoyuki; Nakamura, Takayoshi; Nishihara, Sadafumi
• Is Part Of: Angewandte Chemie international edition. Volume 58:Issue 13(2019)
• Page Start: 4067
• Page End: 4067
• Publication Date: 2019-02-21
• Subjects: ion exchange -- ion channels -- lithium -- magnetic properties -- solid-state structures; Chemistry -- Periodicals; 540
• DOI: 10.1002/anie.201901957
• Languages: English
• ISSNs: 1433-7851

Abstract

Abstract : Selective ion exchange in the crystalline state was achieved with Li2 ([18]crown‐6)3 [Ni(dmit)2 ]2 (H2 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.