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Figure 21
Crystal structures of the polymorphs (a, b) I and (c, d) II of oxBSEM (1b), viewed down (a, c) [010] and (b, d) [100]. Color codes as in Fig. 7[link]. H atoms have been omitted for clarity.

IUCrJ
Volume 2| Part 5| September 2015| Pages 584-600
ISSN: 2052-2525
https://doi.org/10.1107/S2052252515011665