Bulletin of the Korean Chemical Society

Korean Chemical Society (대한화학회)
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Universal LC Method for a Determination of Fourteen Cationic Surfactants Widely Used in Surfactant Industry

  • Ryu, Ho-Ryul (Department of Chemistry, Chungnam National University) ;
  • Park, Hong-Soon (Department of Chemistry, Chungnam National University) ;
  • Rhee, Choong-Kyun (Department of Chemistry, Chungnam National University)
  • Published : 2007.01.20
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Abstract

Ab initio periodic Hartree-Fock calculations with the full potential and minimum basis set are applied to interpretation of scanning tunneling microscope (STM) and atomic force microscope (AFM) images on 1TVTe2. Our results show that the simulated STM image shows asymmetry while the simulated AFM image shows the circular electron densities at the bright spots without asymmetry of electron density to agree with the experimental AFM image. The bright spots of both the STM and AFM images of VTe2 are associated with the surface Te atoms, while the patterns of bright spots of STM and AFM images are different.

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