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Figure 12
Two rows of the coordination polyhedra of Cr (blue) and the attached P2O7 groups (yellow) viewed along c*. Ten unit cells of the basic structure are shown along [{\bf a}] and one unit cell along [{\bf b}] and [{\bf c}]. (a) Incommensurate structure; (b) commensurate structure. The sequence of the coordination numbers of the Cr atoms is indicated. The irregularities in the 5-6-5 5-6-5 pattern are visible at two places of the incommensurate structure.

Journal logoSTRUCTURAL SCIENCE
CRYSTAL ENGINEERING
MATERIALS
ISSN: 2052-5206
Volume 62| Part 4| July 2006| Pages 556-566
doi:10.1107/S0108768106010238
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