Construction of an Artificial Ferrimagnetic Lattice by Lithium Ion Insertion into a Neutral Donor/Acceptor Metal–Organic Framework. (15th March 2016)

• Record Type: Journal Article
• Authors: Taniguchi, Kouji; Narushima, Keisuke; Mahin, Julien; Kosaka, Wataru; Miyasaka, Hitoshi
• Is Part Of: Angewandte Chemie. Volume 128:Number 17(2016)
• Page Start: 5324
• Page End: 5328
• Publication Date: 2016-03-15
• Subjects: Donor-Akzeptor-Systeme -- Elektronische Struktur -- Lithiumbatterien -- Magnetische Eigenschaften -- Metall-organische Gerüste; Chemistry -- Periodicals; 540
• DOI: 10.1002/ange.201601672
• Languages: English
• ISSNs: 0044-8249

Abstract

Abstract: Construction of a molecular system in which the magnetic lattice exhibits long‐range order is one of the fundamental goals in materials science. In this study, we demonstrate the artificial construction of a ferrimagnetic lattice by doping electrons into acceptor sites of a neutral donor/acceptor metal–organic framework (D/A‐MOF). This doping was achieved by the insertion of Li‐ions into the D/A‐MOF, which was used as the cathode of a Li‐ion battery cell. The neutral D/A‐MOF is a layered system composed of a carboxylate‐bridged paddlewheel‐type diruthenium(II, II) complex as the donor and a TCNQ derivative as the acceptor. The ground state of the neutral form was a magnetically disordered paramagnetic state. Upon discharge of the cell, spontaneous magnetization was induced; the transition temperature was variable. The stability of the magnetically ordered lattice depended on the equilibrium electric potential of the D/A‐MOF cathode, which reflected the electron‐filling level.