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Porous Molecular Conductor: Electrochemical Fabrication of Through-Space Conduction Pathways among Linear Coordination Polymers

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journal contribution
posted on 17.04.2019, 00:00 by Liyuan Qu, Hiroaki Iguchi, Shinya Takaishi, Faiza Habib, Chanel F. Leong, Deanna M. D’Alessandro, Takefumi Yoshida, Hitoshi Abe, Eiji Nishibori, Masahiro Yamashita
The first porous molecular conductor (PMC), which exhibits porosity, a through-space conduction pathway and rich charge carriers (electrons), was prepared through electrocrystallization from Cd2+ and N,N′-di­(4-pyridyl)-1,4,5,8-naphthalenetetracarboxdiimide (NDI-py). [Cd­(NDI-py)­(OH2)4]­(NO3)1.3±0.1·nDMA (PMC-1) was assembled by π–π stacking among one-dimensional (1D) linear coordination polymers. The NDI cores were partially reduced into radical anions to form conductive π-stacked columns, yielding (1.0–3.3) × 10–3 S cm–1 at room temperature. Moreover, the electrical conductivity was significantly enhanced by removing the solvent molecules from PMC-1, indicating that PMCs are promising as molecule-responsive conductive materials.