A Three-Dimensional Silicon-Diacetylene Porous Organic Radical Polymer  

作　　者：Chengcheng Dong Juan Chu Linzhu Cao Fengchao Cui Shuang Liang Xintong Zhang Xin Tao Heng-guo Wang Guangshan Zhu 

机构地区：[1]Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education,School of Chemistry,Northeast Normal University,Changchun 130024,Jilin [2]Key Laboratory of UV-Emitting Materials and Technology of Ministry of Education,School of Physics,Northeast Normal University,Changchun 130024,Jilin

出　　处：《CCS Chemistry》2023年第3期607-615,共9页中国化学会会刊（英文）

基　　金：Financial support from the National Natural Science Foundation of China(grant nos.22131004,U21A20330,and 52173195);the“111”project(grant no.B18012);Jilin Provincial Department of Science and Technology(grant no.20210508048RQ);the Fundamental Research Funds for the Central Universities are gratefully acknowledged.

摘　　要：Radical-containing porous organic polymers(POPs)have drawn great interest in various applications.However,the synthesis of radical POPs remains challenging due to the unstable nature of organic radicals.Here,a persistent and stable three-dimensional silicon-diacetylene porous organic radical polymer was synthesized via a classic Eglinton homocoupling reaction of tetraethynylsilane.The presence of carbon radicals in this material was confirmed by electron paramagnetic resonance,and its paramagnetic 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 potential application in energy fields.

关 键 词：THREE-DIMENSIONAL porous organic polymers radical polymer conjugated diacetylene electrode materials 

分 类 号：TQ317[化学工程—高聚物工业]