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Central sections of reciprocal space containing icosahedral NCS axes, showing regions with structure-factor angles belonging to different phase solutions. (a) Successful phase extension (αR). (b) Failed phase extension (αG). Regions of structure factors with correct phases are shown in red, the enantiomorph in green, the Babinet opposite in blue and the enantiomorph of the Babinet opposite in yellow. Lines with numbers indicate the positions of icosahedral symmetry axes.
