A Three-Dimensional Silicon-Diacetylene Porous Organic Radical Polymer
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Radical-containing porous organic polymers(POPs)have drawn great interest in various applications.However,the synthesis of radical POPs remains chal-lenging due to the unstable nature of organic radi-cals.Here,a persistent and stable three-dimensional silicon-diacetylene porous organic radical polymer was synthesized via a classic Eglinton homocou-pling reaction of tetraethynylsilane.The presence of carbon radicals in this material was confirmed by electron paramagnetic resonance,and its paramag-netic behavior was analyzed by a superconducting quantum interference device.This unique material has a low-lying lowest unoccupied molecular orbital(LUMO)energy level(-5.47 eV)and a small energy gap(ca.1.46 eV),which shows long-term cycling stability and excellent rate capability as an anode material for lithium-ion batteries,demonstrating po-tential application in energy fields.
Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education,School of Chemistry,Northeast Normal University,Changchun 130024,Jilin
Key Laboratory of UV-Emitting Materials and Technology of Ministry of Education,School of Physics,Northeast Normal University,Changchun 130024,Jilin
国家自然科学基金国家自然科学基金国家自然科学基金高等学校学科创新引智计划(111计划)Jilin Provincial Department of Science and Technology中央高校基本科研业务费专项
NETL
NSTL
万方数据
维普
