Table 2.

Rate constants for reactions of 2 with various oxidants.

oxidanta	Erxn, V	kH, M-1 s-1	kD, M-1 s-1	KIEb
[N(p-C6H4OMe)3]+ (3a+)	−0.08	(1.4 ± 0.1) × 104	(1.1 ± 0.2) × 105	1.3 ± 0.2
[N(p-C6H4OMe)2(p-C6H4Br)]+ (3b+)	0.08	(2.4 ± 0.2) × 105	c
[N(p-C6H4Me)3]+ (3c+)	0.14	(4.3 ± 0.4) × 105	(1.9 ± 0.2) × 105	2.4 ± 0.3
[N(p-C6H4Br)2(p-C6H4OMe)]+ (3d+)	0.24	(1.4 ± 0.1) × 106	(5.0 ± 0.5) × 105	2.6 ± 0.4
[N(p-C6H4Br)3]+ (3e+)	0.43	(4.9 ± 1.5) × 107	(1.5 ± 0.3) × 107	3.7 ± 1.3
[Fe(Me4phen)3]3+ d	0.22	(3.0 ± 0.3) × 105	c
[Fe(Me2phen)3]3+ e	0.31	(2.1 ± 0.2) × 106	c
[Fe(Me2bpy)3]3+ f	0.36	(4.3 ± 0.4) × 105	c

^aAll oxidants are PF₆^- salts.

^bKIE is the ratio of the rates in the presence of CH₃OH and CD₃OD.

^cNot determined.

^dMe₄phen = 3,4,7,8-Me₄phen.

^eMe₂phen = 4,7-Me₂phen.

^fMe₂bpy = 5,5′-Me₂bpy.