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Figure 5
Friedel symmetry-breaking arising from anomalous scattering. (a) Structure factor of an atom which has negligible f′′: Friedel's law is satisfied. (b) Structure factor of an atom exhibiting anomalous scattering: f+ and f− are different, but their moduli are still identical. (c) Only when there is a mixture of atoms exhibiting anomalous scattering (substructure H) and atoms with negligible anomalous scattering (P) will the Friedel opposites have different intensities.

Journal logoSTRUCTURAL
BIOLOGY
ISSN: 2059-7983
Volume 66| Part 4| April 2010| Pages 447-457
https://doi.org/10.1107/S0907444909053578
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