Figure 1.

EPR spectra of species formed in the chemistry described by Scheme 1: (a) (⁶L)Fe(NO) (1), (b) [(⁶L)Fe^III…Cu^II(D)]³⁺ (3), with high-spin Fe^III (g ~ 6) and Cu^II (g_∥ = 2.26, g_┴ = 2.05, A_∥ = 150 G, A_┴ = 36 G) centers; the spectrum matches a synthetically prepared 1:1 mixture of [(F₈)Fe^III]SbF₆ and Cu^II complex, (c) [(⁶L)Fe(NO)…Cu^II(NO₂⁻)]⁺ (5); the spectrum matches a 1:1 mixture of (F₈)Fe(NO) and [Cu^II(NO₂⁻)]⁺ complex. See text.