Co-proportionation constant

The thermodynamic stability of a new radical anion can be determined from the difference in potentials of the corresponding radical anion and dianion [131] from the equation AE = E — E] = 0.059 log K, where K is the co-proportionation constant for the equilibrium A- -A 2A . The low values obtained for log K reveal that the radical anions have a poor thermodynamic stability compared with the radical anion of... 

Equation 1.8 suggests that the co-proportionation constant, calculated on a statistical basis, will always be above unity. Thus, the statistical redistribution of ligands will favor the formation of mixed-ligand complexes. 

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