计算物理 ›› 2006, Vol. 23 ›› Issue (2): 158-164.

• 研究论文 • 上一篇    下一篇

H3正三角形和H4正四面体结构的变分计算

郭志权1, 王开明1, 王宏德1, 郭秋2, 于永新1, 高首山1   

  1. 1. 鞍山科技大学理学院, 辽宁 鞍山 114044;
    2. 鞍山科技大学计算机学院, 辽宁 鞍山 114044
  • 收稿日期:2005-01-04 修回日期:2005-04-14 出版日期:2006-03-25 发布日期:2006-03-25
  • 作者简介:郭志权(1945-)男,辽宁海城,副教授,硕士,从事分子材料设计理论研究,鞍山科技大学物理系,鞍山市千山中路185号.
  • 基金资助:
    国家自然科学基金资助(批准号:50372001)

A Variational Calculation of Equilateral Triangle H3 and Tetrahedron H4

GUO Zhi-quan1, WANG Kai-ming1, WANG Hong-de1, GUO Qiu2, YU Yong-xin1, GAO Shou-shan1   

  1. 1. School of Mathematics and Physics, Anshan University of Science and Technology, Anshan 114044, China;
    2. School of Computer, Anshan University of Science and Technology, Anshan 114044, China
  • Received:2005-01-04 Revised:2005-04-14 Online:2006-03-25 Published:2006-03-25

摘要: 采用改进排列通道量子力学(Modified Arrangement Channel Quantum Mechanics,简称MACQM)方法和变分法,计算了H3体系正三角形和H4体系的正四面体结构的能量曲线.当H3体系原子核的间距R=1.74a0,波函数变分参数α=1.03时,体系能量有最低值-1.58161 a.u.;当H4体系原子核的间距R=1.60a0,波函数变分参数α=1.07时,体系能量有最低值-2.28097 a.u.,这表明H3体系的正三角形构型和H4的正四面体结构是可以稳定存在的.

关键词: 变分法, 排列通道, 结构与能量, 正三角形, 正四面体

Abstract: With a variational method and a modified arrangmement channel quantum mechanics(MACQM) method, the energies of a equilateral triangle H3 and a tetrahedron H4 system are calculated. The result shows that as α=1.03 and R=1.74a0, the H3 system has a minimal energy of -1.58161 a.u.; as α=1.07 and R=1.60 a0, the H4 system has a minimal energy of -2.28097 a.u.. It shows that both structures could exist.

Key words: variational method, arrangement channel, structure and energy equilateral, triangle, tetrahedron

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