This property can be defined as half of the difference between a molecule's ionization energy and its activation energy, explaining its correlation to Mulliken electronegativity.
Reactions that do not display this property are preferred at the site of the maximum Fukui functions. Class A ligands, as well as biologically relevant ligands that bond through oxygen, such as carboxylates, are bases that exhibit this property. Among 3d metal ions, this character correlates with an oxidation state of +3. This property can be defined as half of the difference between a molecule's ionization energy and its activation energy, explaining its correlation to Mulliken electronegativity. Acids that exhibit this character have high-energy HOMOs and tend to react readily with hydroxide and the smaller halides; these acid-base interactions tend to generate soluble, colorless compounds and are highly ionogenic. For 10 points, name this property defined by Pearson acid-base theory that characterizes compounds that are small, weakly polarizable, and highly charged.
Reactions that do not display this property are preferred at the site of the maximum Fukui functions.
chemical hardness