4. The Principle of Maximum Hardness

  1. Ralph G. Pearson

Published Online: 14 DEC 2005

DOI: 10.1002/3527606173.ch4

Chemical Hardness

Chemical Hardness

How to Cite

Pearson, R. G. (1997) The Principle of Maximum Hardness, in Chemical Hardness, Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim, FRG. doi: 10.1002/3527606173.ch4

Author Information

  1. University of California, Santa Barbara, California, USA

Publication History

  1. Published Online: 14 DEC 2005
  2. Published Print: 30 OCT 1997

ISBN Information

Print ISBN: 9783527294824

Online ISBN: 9783527606177



  • chemical hardness;
  • principle of maximum hardness (PMH);
  • tests of the PMH;
  • softness of excited states;
  • hardness and electronic energy


This chapter contains sections titled:

  • Introduction

  • The Maximum Hardness Principle

  • Tests of the PMH

  • The Softness of Excited States

  • Hardness and the Electronic Energy

  • References