title: Reversible solid state redox of an octacyanometallate-bridged coordination polymer by electrochemical ion insertion/extraction.
abstract: Coordination polymers have significant potential for new functionality paradigms due to the intrinsic tunability of both their electronic and structural properties. In particular, octacyanometallate-bridged coordination polymers have the extended structural and magnetic diversity to achieve novel functionalities. We demonstrate that [Mn(H2O)][Mn(HCOO)(2/3)(H2O)(2/3)](3/4)[Mo(CN)8]·H2O can exhibit electrochemical alkali-ion insertion/extraction with high durability. The high durability is explained by the small lattice change of less than 1% during the reaction, as evidenced by ex situ X-ray diffraction analysis. The ex situ X-ray absorption spectroscopy revealed reversible redox of the octacyanometallate. Furthermore, the solid state redox of the paramagnetic [Mo(V)(CN)8](3-)/diamagnetic[Mo(IV)(CN)8](4-) couple realizes magnetic switching.
authors.affiliation: National Institute of Advanced Industrial Science and Technology, Umezono 1-1-1, Tsukuba, Ibaraki 305-8568, Japan. m-okubo@aist.go.jp
authors.forename: Masashi
authors.initials: M
authors.lastname: Okubo
authors.forename: Koichi
authors.initials: K
authors.lastname: Kagesawa
authors.forename: Yoshifumi
authors.initials: Y
authors.lastname: Mizuno
authors.forename: Daisuke
authors.initials: D
authors.lastname: Asakura
authors.forename: Eiji
authors.initials: E
authors.lastname: Hosono
authors.forename: Tetsuichi
authors.initials: T
authors.lastname: Kudo
authors.forename: Haoshen
authors.initials: H
authors.lastname: Zhou
authors.forename: Kotaro
authors.initials: K
authors.lastname: Fujii
authors.forename: Hidehiro
authors.initials: H
authors.lastname: Uekusa
authors.forename: Shin-ichi
authors.initials: S
authors.lastname: Nishimura
authors.forename: Atsuo
authors.initials: A
authors.lastname: Yamada
authors.forename: Atsushi
authors.initials: A
authors.lastname: Okazawa
authors.forename: Norimichi
authors.initials: N
authors.lastname: Kojima