Fig. 5. Computer simulations of the EPR spectra depicted in fig. 2. Top: result of an automated analysis by means of programs EPRGEN and EPRFT after final refinement, parameters: HFCs 1.948 G (4 H), 1.818 G (4 H), 1.236 G (3 H), 0.470 G (4 H), 0.348 G (4 H), mixed Lorentz-Gauss lineshape (Lorentzian fraction 0.5), width 0.085 G. Center: Fit obtained by means of program HFFITS, parameters: HFCs 5.919 G (1 H), 1.341 G (4 H), Gaussian lineshape, widths (left to right, in G) 0.604, 0.619, 0.549, 0.498, 0.442, 0.478, 0.457, 0.420, 0.387 and 0.365. Bottom: Fit obtained by means of program EPRFT, (average) ^{14} N HFC 1.532 G, Gaussian lineshape, width 1.827 G.