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Centric and acentric reflections: Difference between revisions
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Centric reflections in space group P2 and P2<sub>1</sub> resulting from operator R_g = (-h, k, -l) are thus those with h,0,l. There exist space groups without centric reflections, like R3. | Centric reflections in space group P2 and P2<sub>1</sub> resulting from operator R_g = (-h, k, -l) are thus those with h,0,l. There exist space groups without centric reflections, like R3. | ||
Other definitions of centric reflections:<br> | Other (equivalent) definitions of centric reflections:<br> | ||
Rupp: Centric structure factors are centrosymmetrically related reflections that are additionally related by the point group symmetry of the crystal.<br><br> | Rupp: Centric structure factors are centrosymmetrically related reflections that are additionally related by the point group symmetry of the crystal.<br><br> | ||