Table 2. EPR simulation parameters for the complexes.

Complex	g xx	g yy	g zz	g ave	D/10–4 cm–1	E/D
[1˙]+ a	2.061	2.046	2.037	2.048	—	—
[2˙˙]2+	2.120	2.020	1.980	2.035	75	<0.05
[3˙˙]2+	2.090	2.019	2.000	2.036	13	<0.04
[4˙˙]2+	2.047	2.036	2.033	2.038	—	—
[5˙˙]2+	2.014				—	—

^a Ref. 17.