吉林大学学报(理学版)

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对称外场作用下椅型环戊酮分子的结构和性质

赵衍辉1, 王健2   

  1. 1. 白城师范学院 物理与电子信息学院, 吉林 白城 137000; 2. 吉林大学 学报编辑部, 长春 130012
  • 收稿日期:2016-03-28 出版日期:2017-03-26 发布日期:2017-03-24
  • 通讯作者: 王健 E-mail:13504330602@163.com

Structure and Properties of Chair Form of C5H8O Moleculeunder Action of Symmetric External Field

ZHAO Yanhui1, WANG Jian2   

  1. 1. School of Physics and Electronic Information, Baicheng Normal University, Baicheng 137000, Jilin Province, China; 2. Editorial Department of Journal of Jilin University, Changchun 130012, China
  • Received:2016-03-28 Online:2017-03-26 Published:2017-03-24
  • Contact: WANG Jian E-mail:13504330602@163.com

摘要: 采用密度泛函理论(DFT)中的B3P86/6-311++G(-d,p -)方法, 计算得到环戊酮(椅型)分子沿x轴方向在不同对称电场(-0.006~0.006)作用时的基态几何结构、 电偶极矩和分子总能量. 计算结果表明: 电场强度大小影响分子的几何构型; 分子偶极矩随电场强度的增加而增大; 当电场强度F=0时, 分子总能量为-271. 481 6, 分子总能量随电场强度的增加而降低; 当F=-0.006时达到最大值-271.475 2, 系统总能量随电场强度的增加而逐渐降低.

关键词: Raman光谱, 环戊酮, 结构, 性质, 外电场

Abstract: We obtained the ground states geometry, dipole moment and total energy of C5H8O under different intense electric fields rangin g from -0.006 to 0.006 by using density functional theory DFT/B3P86 at the 6-3 11++G(-d,p-) basis set level. The calculation results show that the geomet ric configuration of C5H8O molecule is affected by the electric field intensity . The dipole moment of the molecule increases with the increase of electric fiel d intensity. The total energy of the molecule is -271.481 6 as F=0. The tota l energy of the molecule decreases with the increase of the electric field intensity. The total energy of the molecule reaches the maximum -27 1.475 2 as F=-0.006. The total energy of the system decreases with the incre ase of the electric field intensity.

Key words: Raman spectrum, cyclopentanone, structure, property, external electric field

中图分类号: 

  • O561.4