Figure 1
Sterographic projections of SRFs of two distinct P212121 data sets with maxima indicated. Projections of data set 1 show that the NCS is 13 (484 500) (c). In (a), the 1 246 000 peak corresponds to the crystallographic twofold axis; further peaks close to the equator correspond to 13 twofold axes perpendicular to the 13-fold axis shown in (c). Projections of data set 2, however, show that the NCS is 12 (89 320) (g). In (e), 12 peaks correspond to twofold axes perpendicular to the 12-fold axis shown in (g). |