期刊文献+

Pd_nPb_m(n+m≤5)混合团簇的结构与光谱性质 被引量:14

Structures and properties of small bimetallic Pd_nPb_m(n+m≤5) clusters
原文传递
导出
摘要 在相对论有效原子实势(RECP)近似下,用密度泛函中的B3LYP/LANL2DZ方法,对纯Pbn(n=2—5)团簇、PdnPbm(n+m≤5)混合团簇的各种可能几何构型进行全优化计算,得到它们的基态结构和光谱性质;从结构和振动光谱两个方面分析了其形成规律;最后计算了团簇的能级分布和最高占据轨道(HOMO)与最低空轨道(LUMO)之间的能级间隙(HLG),分析了团簇的化学活性. The possible geometrical and electronic structures of small bimetallic Pd-Pb clusters including Pbn ( n = 2,3,4,5) and Pdn Pbm (n + m ≤5) have been optimized by density functional theory(B3LYP/LANL2DZ) method with relativistic effective core potential(RECP) using Gaussian 98 code. The shaping regularities of small bimetallic Pd-Pb clusters is analyzed based on structures and vibration spectrum. Finally, the energy level distribution, HOMO-LUMO gaps and the chemical activation are discussed.
出处 《物理学报》 SCIE EI CAS CSCD 北大核心 2006年第5期2241-2248,共8页 Acta Physica Sinica
基金 国家自然科学基金(批准号:10176021 10276028)资助的课题~~
关键词 团簇 有效原子实势 密度泛函 cluster, effective core potential, denstiy function
  • 相关文献

参考文献3

二级参考文献16

  • 1D Andrae, U Haubermann. Energy-adjusted ab initio pseudopotentials for the second and third row transition elements[J]. Theor Chim Acta, 1990,77:123~ 141.?A
  • 2Hughes D T, harris R. A comparative study of hydrogen permeabilities and solublities in some palladium solid solution alloys[ J ]. J. Less-Common Metaals, 1978,61: 9~21.?A
  • 3M. Ege,H. Kronmuller. Isotope effects of the mechanical relaxation of H and D in dilute PdY and PDGD alloys [J]. Journal of Alloys and Compounds, 283,1999: 71~77.?A
  • 4Du Z, Yang H, Li C. Thermodynamic modeling of the Pd- Y system[J ]. Journal of Alloys and Compounds,2000, 297:185~ 191.?A
  • 5Wise M L H, FarrJ P G, Harris I R. X-ray studies of the α/β miscibity gaps of some palladium solid solutionhydrogen system[J]. J. Less-Common Metals, 1975,41:115~ 127.?A
  • 6Hughes D T, Harris R. Hydrogen diffusion menbrancs based on some palladium-rare earth solid solution [J].Alloys-Zeitschrift fur Physikalische Chemie Neue Folge,1979,117:185~ 193.?A
  • 7J Frisch, G W Trucks, H B Schlegel, et al.Gaussian, Inc., 1998.?A
  • 8J. J. Rush,J. M. Rowe,D. Richter. Direct determination of the anharmonic vibrational potential for H in Pd[J] 1984,Zeitschrift für Physik B Condensed Matter(4):283~286
  • 9夏长荣,郭晓霞,汪学军,陈初生,彭定坤,孟广耀.Pd-Y合金膜的MOCVD研制[J].高等学校化学学报,2000,21(1):14-17. 被引量:6
  • 10罗德礼,朱正和,蒋刚,蒙大桥,薛卫东.锆氢化反应热力学函数的计算[J].物理化学学报,2001,17(7):626-630. 被引量:33

共引文献49

同被引文献177

引证文献14

二级引证文献42

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部