Figure 7.

First derivative X-band anisotropic EPR spectra of (a) simulated spectrum of 4a obtained with WinEPR software; (b) experimental spectrum of [V^IV(L⁴)₂] (4); (c) experimental spectrum of [V^IV(L¹)₂] (1); (d) spectrum of the species 1b obtained from the experimental spectrum of 1 subtracting the signals of 1a; (e) simulated spectrum of 1b. With 1a and 4a, the M_I = −7/2, 7/2 resonances of the fac isomers are indicated, while 1b denotes the M_I = −7/2, 7/2 resonances of mer isomer. The experimental spectra were recorded in CH₂Cl₂ at 120 K with an approximate vanadium concentration of 8 × 10^–4 M.