Figure 12
The ideal structure of Pr9O16. Anti-phase CD linkages ½<111>F are in red (in Pr9O16), the ½<210>F linkages are in black and the ½<211>F in-phase linkages in the bc plane are in green (in Pr11O20). In both Figs. 12[link] and 13[link] the cations are in red, the anions are in blue and the vacancies ([white square]) are in yellow.  [article HTML]

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