 | Acta Crystallographica Section B Acta Crystallographica Section B STRUCTURAL SCIENCE, CRYSTAL ENGINEERING AND MATERIALS |
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![[Figure 2]](ra5162fig2mag.jpg)
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Figure 2
Residual density, Δρ, map with atoms in the range −0.5 < x < 0.5, −0.5 < y < 0.5, −0.1 < z < 1.1. B and O1–O3 atoms are abridged for clarity. O3 triangles and A2 octahedra are drawn in red and grey, respectively. All displacement ellipsoids are drawn at the 70% probability level. Purple and blue tetrahedra are (PO4)3− and (SiO4)4− complex anions, respectively. Isosurface: ± 1.5 e Å−3. Yellow: positive; pale blue: negative. (a) Pb4Na(PO4)3. (b) La9.33(SiO4)6O2 (Okudera et al., 2005  ). X-site oxide anions are shown in red. Drawn with VESTA (Momma & Izumi, 2011). |
![[Figure 2]](ra5162fig2.jpg)
| STRUCTURAL SCIENCE CRYSTAL ENGINEERING MATERIALS |
ISSN: 2052-5206
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