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LiX-(X=H,F,Cl)分子离子基态(X^2∑+)势能函数与力常量
引用本文:刘长欣,郭海鸥,吴旌贺.LiX-(X=H,F,Cl)分子离子基态(X^2∑+)势能函数与力常量[J].郑州大学学报(自然科学版),2013(2):68-71.
作者姓名:刘长欣  郭海鸥  吴旌贺
作者单位:[1]河南教育学院物理系,河南郑州450046 [2]河南教育学院学报编辑部,河南郑州450046
基金项目:国家自然科学基金资助项目,编号11102060.
摘    要:利用Gaussian09程序包中单双取代的耦合簇理论(CCSD)对LiX-(X=H,F,Cl)分子离子基态进行了几何优化和频率计算,进一步进行了单点能扫描计算.用最小二乘法拟合得到了LiX-(X=H,F,Cl)分子离子基态的Murrell—Sorbie势能函数,计算得到了LiX-(X=H,F,Cl)分子离子基态的力常量.

关 键 词:LiX-(X=H,F,Cl)分子离子  结构  势能函数

The Potential Energy Function and Force Constants for the Ground State (X2∑ + ) of the LiX-(X=H,F,Cl)
LIU Chang-xin,GUO Hai-ou,WU Jing-he.The Potential Energy Function and Force Constants for the Ground State (X2∑ + ) of the LiX-(X=H,F,Cl)[J].Journal of Zhengzhou University (Natural Science),2013(2):68-71.
Authors:LIU Chang-xin  GUO Hai-ou  WU Jing-he
Institution:1 ( 1. Department of Physics, Henan Institute of Education, Zhengzhou 450046, China ; Editorial Department of Journal, Henan Institute of Education, Zhengzhou 450046, China)
Abstract:Based on the Gaussian09 calculation software, CCSD method was used to optimize the possible ground-state structures of LiX-(X=H,F,Cl) molecule ion. Frequency and single-point energy scan were calculated respectively. The force constants (f2 ,f3 ,f4 ) of the LiX-(X=H,F,Cl) ion ground state were obtained by the least square fitting to the Murrell-Sorbie function.
Keywords:LiX-(X=H,F,Cl) molecular ion  structure  potential energy function
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