Theoretical Chemistry Accounts

, Volume 114, Issue 1–3, pp 68–75 | Cite as

DFT ×TB − a unified quantum-mechanical hybrid method

  • Hélio A. Duarte
  • Thomas Heine
  • Gotthard Seifert


A unified quantum mechanical hybrid method on the basis of density functional theory (DFT) is presented. The method is based on an LCAO-Kohn-Sham ansatz. While a part is treated with standard DFT, for the remaining system non-orthogonal tight-binding (TB) approximations are made for potential and basis functions. This means that it is possible to have covalent bonds in between the DFT and TB parts. The charge fluctuation within the system is controlled by the self-consistent charge technique. Theory, implementation, and first example molecules are presented in this article, and further development is discussed.


Physical Chemistry Inorganic Chemistry Organic Chemistry Basis Function Density Functional Theory 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Springer-Verlag Berlin Heidelberg 2005

Authors and Affiliations

  • Hélio A. Duarte
    • 1
  • Thomas Heine
    • 2
  • Gotthard Seifert
    • 2
  1. 1.Departamento de Química-ICExUniversidade Federal de Minas GeraisBelo HorizonteBrazil
  2. 2.Institut für Physikalische Chemie und ElektrochemieTU DresdenDresdenGermany

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