PRE Calculator (model free version)

B₀ field (MHz):

Distance between nucleus and paramagnetic center (Å):

Electron spin number:

Rotational correlation time (ns):

Electron relaxation time (ns):

Internal correlation time (ns):

Order parameter (S², 0 - 1):

Nucleus type (1H, 13C, or 15N):
1H
13C
15N