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The fractional co-ordinates of the four Fe atoms in the unit cell are: Fe2 0.4618, 0.3033, 0.3742 Fe3 0.4618, 0.1967, 0.8742 Fe4 0.5382, 0.6967, 0.6259 Molecules 1 and 2 are related by a center of symmetry at ½, ½, ½: Molecules 1 and 3 are related by a 2-fold screw axis at x = ½, z = ¼: Molecules 1 and 4 are related by a c-glide plane at y = ¾: Molecules 2 and 3 are related by a c-glide plane at y = ¼: Molecules 2 and 4 are related by a 2-fold screw axis at x = ½, z = ¾: Molecules 3 and 4 are related by a center of symmetry at ½, ½, ½: |
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