Reversible Solid State Redox of an Octacyanometallate-Bridged Coordination Polymer by Electrochemical Ion Insertion/Extraction Masashi Okubo Koichi Kagesawa Yoshifumi Mizuno Daisuke Asakura Eiji Hosono Tetsuichi Kudo Haoshen Zhou Kotaro Fujii Hidehiro Uekusa Shin-ichi Nishimura Atsuo Yamada Atsushi Okazawa Norimichi Kojima 10.1021/ic302364d.s001 https://acs.figshare.com/articles/journal_contribution/Reversible_Solid_State_Redox_of_an_Octacyanometallate_Bridged_Coordination_Polymer_by_Electrochemical_Ion_Insertion_Extraction/2429608 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(H<sub>2</sub>O)]­[Mn­(HCOO)<sub>2/3</sub>(H<sub>2</sub>O)<sub>2/3</sub>]<sub>3/4</sub>­[Mo­(CN)<sub>8</sub>]·H<sub>2</sub>O 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 <i>ex situ</i> X-ray diffraction analysis. The <i>ex situ</i> X-ray absorption spectroscopy revealed reversible redox of the octacyanometallate. Furthermore, the solid state redox of the paramagnetic [Mo<sup>V</sup>(CN)<sub>8</sub>]<sup>3‑</sup>/diamagnetic­[Mo<sup>IV</sup>(CN)<sub>8</sub>]<sup>4‑</sup> couple realizes magnetic switching. 2013-04-01 00:00:00 polymer durability octacyanometallate MoV electrochemical insertion analysis coordination absorption functionality paradigms Ion Reversible State Redox tunability novel functionalities diversity spectroscopy state redox couple Mn lattice change Polymer diffraction Electrochemical Insertion Coordination