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AlO2和Al2O分子的结构与解析势能函数
引用本文:吕 兵,令狐荣锋,周 勋,程新路,杨向东. AlO2和Al2O分子的结构与解析势能函数[J]. 物理学报, 2008, 57(4): 2145-2151
作者姓名:吕 兵  令狐荣锋  周 勋  程新路  杨向东
作者单位:(1)贵州师范大学理学院,贵阳 550001; (2)贵州师范大学理学院,贵阳 550001;四川大学原子与分子物理研究所,成都 610065; (3)四川大学原子与分子物理研究所,成都 610065
基金项目:国家自然科学基金(批准号:10574096)、高等学校博士学科点专项科研基金(批准号:20050610010)、贵州省教育厅自然科学基金(批准号:2005105)和贵州师范大学青年教师科研基金资助的课题.
摘    要:运用密度泛函理论的B3LYP方法在6-311++G**水平上,对AlO2,Al2O分子的结构进行了优化计算,得到AlO2,Al2O分子的稳定结构都为Dh构型. AlO2电子态为X2Πu,平衡核间距RAl-O关键词:2')" href="#">AlO22O')" href="#">Al2OMurrell-Sorbie函数多体项展式理论

关 键 词:AlO2  Al2O  Murrell-Sorbie函数  多体项展式理论
收稿时间:2007-07-03
修稿时间:2007-07-03

Structure and analytic potential energy functions of the molecules AlO2 and Al2O
Lü Bing,Linghu Rong-Feng,Zhou Xun,Cheng Xin-Lu,Yang Xiang-Dong. Structure and analytic potential energy functions of the molecules AlO2 and Al2O[J]. Acta Physica Sinica, 2008, 57(4): 2145-2151
Authors:Lü Bing  Linghu Rong-Feng  Zhou Xun  Cheng Xin-Lu  Yang Xiang-Dong
Abstract:The density function (B3LYP) method has been used to optimize the possible ground-state structures of AlO2 and Al2O molecules. The results show that the ground state of AlO2 molecule has Dh symmetry and is in the X2Πu state. The parameters of structure are RAl-O=0.1661 nm and De=8.9217eV, respectively. The results also show that the ground state of Al2O molecule has Dh symmetry and is in the X1Σg state. The parameters of structure are RO-Al=0.1731 nm and De=10.5269eV, respectively. The potential energy functions of AlO2 and Al2O have been derived from the many-body expansion theory. The contours describe correctly the configurations and the dissociation energies of the two ground-state molecules.
Keywords:AlO2   Al2O   Murrell-Sorbie function   many-body expansion theory
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