Synthesis and Structure of Solution-Stable One-Dimensional Palladium Wires

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Synthesis and Structure of Solution-Stable One-Dimensional Palladium Wires

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Title: Synthesis and Structure of Solution-Stable One-Dimensional Palladium Wires
Author: Campbell, Michael Glenn; Powers, David C.; Raynaud, Jean; Graham, Michael J.; Xie, Ping; Lee, Eunsung; Ritter, Tobias

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Citation: Campbell, Michael Glenn, David C. Powers, Jean Raynaud, Michael J. Graham, Ping Xie, Eunsung Lee, and Tobias Ritter. 2011. Synthesis and structure of solution-stable one-dimensional palladium wires. Nature Chemistry 3(12): 949–953.
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Abstract: One-dimensional metal wires are valuable materials because of their optical and electronic anisotropy, and they have potential utility in devices such as photovoltaic cells and molecular sensors. However, despite more than a century of research, only a few examples exist of well-defined one-dimensional (1D) metal wires that allow for the rational variation of conductivity. Herein we describe the first examples of 1D molecular wires supported by Pd–Pd bonds, the thin-film conductive properties of which can be altered by controlled molecular changes. Wires based on Pd(III) give semiconducting films with a modifiable bandgap, whereas wires based on Pd(2.5) give films that display metallic conductivity above 200 K: a metallic state has not been reported previously for any polymer composed of 1D metal wires. The wires are infinite in the solid state and maintain 1D structures in solution with lengths of up to 750 nm. Solution stability enables thin film coating, a requisite for device fabrication using molecular wires.
Published Version: doi:10.1038/nchem.1197
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