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遗传算法优化(MgO)_n团簇(n=2~20)结构 被引量:4

Global geometry optimization of neutral(MgO)_n clusters(n=2~20) using genetic algorithm
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摘要 基于经验势,利用遗传算法研究了中性氧化镁(MgO)n团簇(n=2~20)的稳定结构.当n=3,6,9,12,15,18时,(MgO)n团簇具有幻数结构.对这些幻数结构的不同稳定异构体在Me2/6—31G水平上进行优化,并对稳定结构的特征及其随尺寸变化的规律进行了分析.同时,优化了带负电的(MgO)n^-(n≤6)团簇的结构,分析了额外负电子对团簇结构的影响. The stable structures of neutral (MgO)n cluster (n = 2 - 20) are investigated using genetic algorithm based on empirical potential. Magic structures of (MgO)n cluster are n=3,6,9,12,15,18. The different stable isomers of (MgO)n magic clusters are optimized on MP2/6-31G level when n=6,9,12. For the most stable isomers (MgO)n clusters, the structural properties and their change with increasing clusters size are analyzed. The most stable structures (MgO)n (n≤6) clusters and (MgO)n^-(n≤6) clusters are optimized, and the effect of the excess electron on (MgO).(n≤6) structures is studied with MP2.
出处 《西北师范大学学报(自然科学版)》 CAS 2007年第4期55-59,共5页 Journal of Northwest Normal University(Natural Science)
基金 国家自然科学基金资助项目(10347007)
关键词 遗传算法 (MgO)n团簇 结构优化 genetic algorithm (MgO)n clusters geometry optimization
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参考文献16

  • 1王广厚,倪国权,李郁芬,施朝淑.团簇研究的一些进展[J].自然科学进展(国家重点实验室通讯),1995,5(4):403-409. 被引量:6
  • 2袁喆,何春龙,王晓路,刘海涛,李家明.团簇的第一原理分子动力学计算研究:价键优选法[J].物理学报,2005,54(2):628-635. 被引量:11
  • 3WILSON MARK.Stability of small MgO nanotube clusters:Prediction of a transferable ionic potential model[J].J Phys Chem B,1997,101:4917-4924.
  • 4SAUNDERS WINSTON A.Structural dissimilarities between small Ⅱ-Ⅵ compound cluster:MgO and CaO[J].Phys Rev B,1988,37:6583-6586.
  • 5ZIEMANN P J,CASTLEMAN A W JR.Stabilities and structures of gas phase MgO clusters[J].J Chem Phys,1991,94:718-728.
  • 6RECIO J M,PANDEY RAVINDRA,AYUELA ANDRES,et al.Molecular orbital calculations on (MgO) and (MgO)n clusters (n= 1 ~ 13)[J].J Chem Phys,1993,98:4783-4792.
  • 7WILSON MARK.Stability of small MgO nanotube clusters:Predictions of a transferable ionic potential model[J].J Phys Chem B,1997,101:4917-4924.
  • 8PUENTA E DE LA,AGUADO A,AYVELA A LOPEZ J M.Structural and electronic properties of small neutral (MgO)n clusters[J].Phys Rev B,1997,56:7607-7614.
  • 9CALVO F.Crossover between ionic-covalent bonding and pure ionic bonding in magnesium oxide clusters[J].Phys Rev B,2003,67:161403.
  • 10王广厚.遗传算法研究原子团簇[J].物理学进展,2000,20(3):251-275. 被引量:28

二级参考文献42

共引文献44

同被引文献109

  • 1袁喆,何春龙,王晓路,刘海涛,李家明.团簇的第一原理分子动力学计算研究:价键优选法[J].物理学报,2005,54(2):628-635. 被引量:11
  • 2王广厚,倪国权,李郁芬,施朝淑.团簇研究的一些进展[J].自然科学进展(国家重点实验室通讯),1995,5(4):403-409. 被引量:6
  • 3尹跃洪,陈宏善,张材荣,宋燕.AgCl团簇结构的研究[J].西北师范大学学报(自然科学版),2006,42(1):50-53. 被引量:6
  • 4张材荣,许广济,寇生中,陈宏善.Ir_n(n=2-25)团簇基态结构的遗传算法研究[J].原子与分子物理学报,2006,23(1):122-126. 被引量:10
  • 5王新强,罗强,何焕典,李波.HgTe小团簇几何结构与电子性质的第一性原理研究[J].原子与分子物理学报,2006,23(B04):140-142. 被引量:8
  • 6Kim J H, Li X, Wang L S, et al. Vibrationally resolved photoelectron spectroscopy of MgO- and ZnO- and the low-lying electronic states of MgO and ZnO. J Phys Chem, 2001, 105:5709-5718
  • 7Wlison M. Stability of small MgO nanotube clusters: Prediction of a transferable ionic potential mode. J Phys Chem B, 1997, 101: 4917-4924
  • 8de la Puente E, Aguado A, Ayucla A, et al. Structural and electronic properties of small neutral (MgO)n clusters. Phys Rev B, 1997, 56: 7607-7614
  • 9Chen L, Xu C, Zhang X F. DFT calculations of vibrational spectra and nonlinear optical properties for MgO nanotube clusters. J Mol Struct-Theochem, 2008, 863:55-59
  • 10Conover C W S, Yang Y A, Bloomfield L A. Laser vaporization of solids into an inert gas: A measure of high-temperature cluster stability. Phys Rev B, 1988, 38:3517-3520

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