Journal of Chemical Sciences

, Volume 117, Issue 5, pp 369–377 | Cite as

Chemical hardness and density functional theory

  • Ralph G. Pearson


The concept of chemical hardness is reviewed from a personal point of view.


Hardness softness hard & soft acids bases (HSAB) principle of maximum hardness (PMH) density functional theory (DFT) 


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  1. 1.
    Parr R G and Yang W 1982Density functional theory for atoms and molecules (New York: Oxford University Press)Google Scholar
  2. 2.
    Pearson R G 1997Chemical hardness (Weinheim: John Wiley-VCH)Google Scholar

Copyright information

© Indian Academy of Sciences 2005

Authors and Affiliations

  • Ralph G. Pearson
    • 1
  1. 1.Chemistry DepartmentUniversity of CaliforniaSanta BarbaraUSA

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