Table 2. Hammett Parameters for Reduction Potentials of Arylmethanes^a.

		ρ		ρ+	ρ–
Ar3C+/•	per 3σ	6.0		3.5
Ar3C•/–	per 3σ		4.9		4.8
ArPhCH+/•	per 1σ			5.6
ArPhCH•/–	per 1σ				7.4
ArCH2+/•	per 1σ			9.3
ArCH2•/–	per 1σ				13.5

^aThe first two lines are from this work (Table 1 and SI Section 7); the remaining values are from ref (70).