FIGURE 2.

Experimental 2D-ELDOR spectra (left side) and their best-fit simulations (right side) for 16-PC in pure DPPC vesicles for values of mixing time T_m = 50, 500, and 1,500 ns. In the inset above are shown the three π/2 pulse sequence used for the 2D-ELDOR experiment as well as the relevant times: t₁, t₂, T_m, and t_d. The frequencies f₁ and f₂ are given relative to the applied microwave frequency.