 | Acta Crystallographica Section B Acta Crystallographica Section B STRUCTURAL SCIENCE, CRYSTAL ENGINEERING AND MATERIALS |
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![[Figure 5]](dk5034fig5mag.jpg)
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Figure 5
Upper row: Average B,Si-polyhedra (a), possible coordination of B (b), (d) and Si (c) in Sr3B2.78Si0.22O7.61 (x = 0.78). Next rows: Occupation of O4 (e), O1 (f), O2 (g), O2 (1-x, 1-y, 2-z) (h), and displacements of the O3 (i) and Sr (j) sites as functions of (x4, x5). On figures (i) and (j) values above the average are plotted as solid contours and smaller values as dotted lines. Contour intervals are 0.1 in (e)–(h) and 0.02 Å in (i), (j). Correlation between oxygen modulation parameters clearly indicates the modulation of the tilting angles of the B and Si polyhedra. Modulation parameters of the Sr and O3 atoms also correlate to each other. |
![[Figure 5]](dk5034fig5.jpg)
| STRUCTURAL SCIENCE CRYSTAL ENGINEERING MATERIALS |
ISSN: 2052-5206
