Electron conductive three-dimensional polymer of cuboidal C60
Electron conductive three-dimensional polymer of cuboidal C60
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DOI：
10.1103/physrevlett.96.076602
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发表时间：
2006-02-24
影响因子：
8.6
通讯作者：
Irifune, T
中科院分区：
文献类型：
--
作者：
Yamanaka, S;Kubo, A;Irifune, T
通过二维（2D）C-60聚合物单晶在15 GPa压力和600℃下进行拓扑转化制备了三维（3D）C-60聚合物单晶。X射线单晶研究表明，3D C-60聚合物在体心正交空间群Immmm中结晶，球形C-60单体单元基本变形为长方体（立方体）形状，每个单元通过 [3+3] 环加成与八个立方体 C-60 邻居键合。 3D C-60 聚合物具有电子导电性，而 2D 聚合物则具有非导电性。
Single crystals of three-dimensional (3D) C-60 polymer were prepared by the topotactic conversion of two-dimensional (2D) C-60 polymer single crystals at a pressure of 15 GPa at 600 degrees C. The x-ray single crystal study revealed that the 3D C-60 polymer crystallized in a body centered orthorhombic space group Immm, and spherical C-60 monomer units were substantially deformed to rectangular parallelepiped (cuboidal) shapes, each unit being bonded to eight cuboidal C-60 neighbors via [3+3] cycloaddition. The 3D C-60 polymer was electron conductive, in contrast with the nonconductive behavior of 2D polymers.