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Magnetic diffraction Systematic Absences for the group Cmc21 (#36.172)
For this space group, BNS and OG settings coincide.
Its label in the OG setting is given as: Cmc21 (#36.1.249)

Values of h, k, l:  h integer, k integer, l integer


Systematic absences for general reflections (produced by centrings):


Diffraction vector type:   (h k l)     ->      Systematic absence:    h + k = 2n + 1


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 = (0,0,0)


[Show form of structure factor for every type of reflection]

Go to the list of the General Positions of the Group Cmc21 (#36.172) [OG:Cmc21 (#36.1.249)]
Go to the list of the Wyckoff Positions of the Group Cmc21 (#36.172) [OG:Cmc21 (#36.1.249)]

[Show systematic absences in a different setting]


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