title: Electrochemical Li-Ion Intercalation in Octacyanotungstate-Bridged Coordination Polymer with Evidence of Three Magnetic Regimes.
abstract: Discovery of novel compounds capable of electrochemical ion intercalation is a primary step toward development of advanced electrochemical devices such as batteries. Although cyano-bridged coordination polymers including Prussian blue analogues have been intensively investigated as ion intercalation materials, the solid-state electrochemistry of the octacyanotungstate-bridged coordination polymer has not been investigated. Here, we demonstrate that an octacyanotungstate-bridged coordination polymer Tb(H2O)5[W(CN)8] operates as a Li(+)-ion intercalation electrode material. The detailed magnetic measurements reveal that the tunable amount of intercalated Li(+) ion in the solid-state redox reaction between paramagnetic [W(V)(CN)8](3-) and diamagnetic [W(IV)(CN)8](4-) in the framework enables the electrochemical control of different magnetic regimes. While the initial ferromagnetic long-range ordering is irreversibly lost upon lithium insertion, electrochemical switching between paramagnetic and short-range ordering regimes can be achieved.
authors.affiliation: Institut Charles Gerhardt Montpellier, Ingénierie Moléculaire et Nano-Objets, UMR 5253 UM-CNRS-ENSM, Université de Montpellier , Place E. Bataillon, 34095 Montpellier, France.
authors.forename: Jérôme
authors.initials: J
authors.lastname: Long
authors.affiliation: National Institute of Advanced Industrial Science and Technology , Umezono 1-1-1, Tsukuba, Japan.
authors.forename: Daisuke
authors.initials: D
authors.lastname: Asakura
authors.affiliation: Department of Chemical System Engineering, School of Engineering, The University of Tokyo , Hongo 7-8-1, Bunkyo-ku, Tokyo, Japan.
authors.forename: Masashi
authors.initials: M
authors.lastname: Okubo
authors.affiliation: Department of Chemical System Engineering, School of Engineering, The University of Tokyo , Hongo 7-8-1, Bunkyo-ku, Tokyo, Japan.
authors.forename: Atsuo
authors.initials: A
authors.lastname: Yamada
authors.affiliation: Institut Charles Gerhardt Montpellier, Ingénierie Moléculaire et Nano-Objets, UMR 5253 UM-CNRS-ENSM, Université de Montpellier , Place E. Bataillon, 34095 Montpellier, France.
authors.forename: Yannick
authors.initials: Y
authors.lastname: Guari
authors.affiliation: Institut Charles Gerhardt Montpellier, Ingénierie Moléculaire et Nano-Objets, UMR 5253 UM-CNRS-ENSM, Université de Montpellier , Place E. Bataillon, 34095 Montpellier, France.
authors.forename: Joulia
authors.initials: J
authors.lastname: Larionova