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Extinction rules for the group P_I23 (195.3)




Extinctions for general positions (produced by centrings):

   (h k l)     ->      Extinction rule/s:    h + k + l = 2n
    For  h = 1, k = 1, l = 1 :      I ≠ 0       F = (Fx, Fy, Fz)
    For  h = 1, k = 1, l = 2 :      I = 0       F = (0, 0, 0)
    For  h = 1, k = 2, l = 1 :      I = 0       F = (0, 0, 0)
    For  h = 1, k = 2, l = 2 :      I ≠ 0       F = (Fx, Fy, Fz)
    For  h = 2, k = 1, l = 1 :      I = 0       F = (0, 0, 0)
    For  h = 2, k = 1, l = 2 :      I ≠ 0       F = (Fx, Fy, Fz)
    For  h = 2, k = 2, l = 1 :      I ≠ 0       F = (Fx, Fy, Fz)
    For  h = 2, k = 2, l = 2 :      I = 0       F = (0, 0, 0)


Extinctions for special positions:

   (h 0 0)          ->      Extinction Rule/s: h any

   (0 k 0)          ->      Extinction Rule/s: k any

   (0 0 l)          ->      Extinction Rule/s: l any

   (h h h)          ->      Extinction Rule/s: h any

   (h -h -h)          ->      Extinction Rule/s: h any

   (h -h h)          ->      Extinction Rule/s: h any

   (h h -h)          ->      Extinction Rule/s: h any





Go to the operators of 195.3 (PI23)
Go to the Wyckoff Positions of 195.3 (PI23)



Back to the list of magnetic space groups derived from P23
Back to the list of Magnetic Space Groups

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