关键词: C20四聚体/
结构与性能/
密度泛函理论
English Abstract
Study on the structure and properties of fullerene C20 tetramer
Zhang Zhong-Shuo,Zhang Xiu-Rong,
Gu Jiang,
Ma Pan-Tao
1.School of Mathematics and Physics, Jiangsu University of Science and Technology, Zhenjiang 212003, China
Fund Project:Project supported by Innovation and Entrepreneurship Training Program for College Students in Jiangsu Province, China (Grant No. 201510289003Z) and the Jiangsu University of Science and Technology Undergraduate Innovation Program, China.Received Date:10 August 2015
Accepted Date:24 August 2015
Published Online:20 January 2016
Abstract:The possible geometrical and electronic structures of fullerene C20 tetramer are optimized by using the density functional theory (b3lyp) at the 6-31G level. For the ground state structures of C20 tetramer, the stability properties, natural bond orbits (NBO), the spectrum, the polarizability and the aromatic characteristics are analyzed. The calculated results show: C20 tetramer may be synthesized by [2+2] addition reaction of C20 carbon cages, which have good thermal stability. Carbon atoms in C20 tetramer are in sp2 hybridization and these atoms happen to have charge transfer. There are a lot of vibration peaks in IR and Raman spectra of C20 tetramer. The bonding interactions between atoms of C20 polymer increase with increasing number of the carbon cages. The C20 tetramer has aromaticity.
Keywords: C20 tetramer/
structure and properties/
density functional theory