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Construction of an Artificial Ferrimagnetic Lattice by Lithium Ion Insertion into a Neutral Donor/Acceptor Metal–Organic Framework
Author(s) -
Taniguchi Kouji,
Narushima Keisuke,
Mahin Julien,
Kosaka Wataru,
Miyasaka Hitoshi
Publication year - 2016
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201601672
Subject(s) - ferrimagnetism , acceptor , ion , electron acceptor , doping , cathode , metal organic framework , paramagnetism , ground state , chemistry , lithium (medication) , materials science , lattice (music) , chemical physics , magnetization , condensed matter physics , atomic physics , photochemistry , physics , optoelectronics , magnetic field , organic chemistry , medicine , quantum mechanics , adsorption , endocrinology , acoustics
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.