Theoretical Chemistry Accounts

, 124:431 | Cite as

Study on structures and electron affinities of small potassium–silicon clusters Si n K (n = 2–8) and their anions with Gaussian-3 theory

  • Dong-Sheng Hao
  • Jin-Rong Liu
  • Wen-Guang Wu
  • Ju-Cai YangEmail author
Regular Article


The neutral Si n K (n = 2–8) clusters and their anions have been systematically studied by means of the higher level of Gaussian-3 schemes. Equilibrium geometries and electron affinities have been calculated and are discussed for each considered size. For neutral Si n K clusters, the ground state structure is found to be “attaching structure”, in which the K atom is bound to Si n clusters. The most stable isomer for their anions, however, is found to be “substitutional structures”, which is derived from Si(n+1) by replacing the Si atom with a K. The dissociation energies of K atom from the lowest energy structures of Si n K have also been estimated to examine relative stabilities.


SinStructures Electron affinities Dissociation energies G3 theory 



This work has been financially supported by a research grant (Grant No. NJ05052) administered by the Science and Research Foundation of Higher Education of Inner Mongolia and by the NCET Grant (Grant No. NCET-06-0267) from the Ministry of Education of the People’s Republic of China.

Supplementary material

214_2009_635_MOESM1_ESM.doc (3.6 mb)
Supplemantary material (DOC 3704 kb)


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Copyright information

© Springer-Verlag 2009

Authors and Affiliations

  • Dong-Sheng Hao
    • 1
  • Jin-Rong Liu
    • 1
  • Wen-Guang Wu
    • 1
  • Ju-Cai Yang
    • 2
    Email author
  1. 1.School of Chemical EngineeringInner Mongolia University of TechnologyHohhotPeople’s Republic of China
  2. 2.School of Energy and Power EngineeringInner Mongolia University of TechnologyHohhotPeople’s Republic of China

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