Space Group 74 :
I b m m
(
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link to main list of space groups in standard settings.)
(a).
I b m m
with origin at 2/
m
and
mm
2 at
x
,0,1/4.
(b).
I b m m
with origin at 2/
m
and
mm
2 at
x
,1/4,0
© Copyright 1997-1999.
Birkbeck College, University of London.