1. 2D Coordination Network of Trioxotriangulene with Multiple Redox Abilities and Its Rechargeable Battery Performance
- Author
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Tsuyoshi Murata, Taro Koide, Hirofumi Nobukuni, Ryotaro Tsuji, and Yasushi Morita
- Subjects
metal–organic framework ,organic rechargeable battery ,multistage redox ability ,tridentate ligand ,polycyclic aromatic molecule ,Biology (General) ,QH301-705.5 ,Chemistry ,QD1-999 - Abstract
A three-fold symmetric trioxotriangulene derivative with three pyridyl groups as coordinating sites was designed and synthesized. In a cyclic voltammetry measurement, the trioxotriangulene skeleton exhibited a multi-stage redox ability from neutral radical to radical tetra-anion species. In the zinc complex of monoanion species, three pyridyl groups coordinated to the zinc ion to build up a two-dimensional coordination network with a cavity larger than 12 Å in diameter. This complex was utilized as a cathode active material of a lithium ion battery, and it exhibited a capacity of ca. 60 mAh g−1 per the weight of the active material with a stable cycling performance up to 1000 cycles. This work shows that the coordination network formed by the trioxotriangulene-based ligand was effective in the improvement of cycle performance of the organic rechargeable battery.
- Published
- 2020
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