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Figure 22
(a) Perspective view of the structure of LiNdP4N8 showing the four-connectivity of the P skeleton. Nd atoms occupy positions in the octagonal tunnels. Li atoms locate in the square tunnels (small ochre spheres). (b) Structure of paracelsian Ba[Al2Si2O8] projected onto the ab plane. The octagonal tunnels contain the Ba atoms. |

journal menu![[Figure 22]](ra5152fig22.jpg)
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