Chem. J. Chinese Universities ›› 2000, Vol. 21 ›› Issue (2): 255.

• Articles • Previous Articles     Next Articles

Quantum Chemical Study of Silicon-sulfur Clusters(SiS2)n+(n=1-3)

WANG Su-Fan1, FENG Ji-Kang1, CUI Meng1, SUN Chia-Chong2, LIU Peng2   

  1. 1. State Key Laboratory of Theoretical and Computational Chemistry, Institute of Theoretical Chemistry, Jilin University, Changchun 130023, China;
    2. State Key Laboratoryof Molecular Reaction Dynamic, Instituteof Chemistry, Chinese Academy of Sciences, Beijing 100080, China
  • Received:1999-01-18 Online:2000-02-24 Published:2000-02-24

Abstract: The possible geometrical structures and relative stability of silicon-sulfur clusters(SiS2)n+(n=1-3) are explored by means of density functional theory(DFT) quantum chemical calculations. The effects of polarization functions and electron correlation are included in these calculations. The electronic structure and vibrational spectrum of the most stable geometrical structure of (SiS2)n+are analyzed by the same method. As the result, the regularity of the (SiS2)n+cluster growing is obtained, and the calculation can be used to predict the mechanism of the (SiS2)n+cluster forming.

Key words: Silicon-sulfur clusters, Geometry, Electronic structure, Vibrational spectrum

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