Chemical Power and Its Double Minimum Principle

Since noting the opposition of electronegativity and chemical hardness, i.e., being the former associated with the tendency of the system to attract electrons and the latter with the tendency to inhibit the coordination and with the system stability, one may introduce the concept of chemical power, as the d5mamic charge of atoms in a molecule, between molecular fragments or between adducts in a chemical bond, through the basic definition (Putz Putz, 2013)  

The last identity in Eq. (3.166) follows from chemical hardness-to-electroncgativity definition (3.162) and allows the practical interpretation 

FIGURE 3.8 (a) Orthogonal hardness-electronegativity (// - x) representation for an electronic system with coordinate A (b) the ABB mechanism of frontier chemical 

Electrophilicity (Parr et al., 1999), firrther allows coupling of chemical power index with electronegativity to provide the energetic information of 

FIGURE 3.10 (a) The incomplete ligand (L)-receptor (R) interaction illustrates the two spin-electrons at the HOMO and LUMO levels through electronegativity (x) and chemical 

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