Table 2.

λ_max (nm), pK_a, E_ox (V) and bond dissociation energy (BDE) values (kcal/mol) for selected compounds [17,27,39,46,56,61].

Compound	λradical	λanion	λhydrazine	pKa	Eox	BDE
DPPH	518	424	322	8.54	0.30	75.3
1	512	383	337	11.3	0.13	74.5
9	500	505	352	7.35	0.49	-
10	500	485	352	6.49	0.60	-
12	524	413	353	8.20	0.34	82
13	506	441	363	10.7	0.25	76.4
23	500	365	346	11.1	0.24	76.3
25	524	655	324	12.5	0.87	76.81
26	517	495	330	11.6	1.17	76.96
27	517	492	332	10.9	1.23	70.67
28	486	620	392	7.82	0.173	75.45
29	507	645	404	8.07	0.107	75.08
30	510	654	482	8.33	0.130	75.30