Systematic Absences of the magnetic space group Pm'c'21 (#26.70) in the setting (a, b, 2c; 0, 0, 0) of the parent space group I4/mmm (No. 139)
Values of h, k, l:  h integer, k integer, l integer
Warning: h, k, l are referred to the parent-like setting
Systematic absences for special reflections:
Diffraction vector type: (0 0 l) -> Systematic absence: l = 2n
For l = 1 : I /= 0 F = (Fx,0,0)
For l = 2 : I = 0 F = (0,0,Fz)
[Show form of structure factor for every type of reflection]