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Figure 3
Schematic representation of the three dimensional coordination of the β-Cd3(PO4)2 structure; (a) two successive layers parallel to the ab plane of the cations (Cd2, Cd4 and Cd9) and (Cd5, Cd6 and Cd8), (b) Cd2O5, Cd4O5 and Cd9O6 polyhedra forming a ring of eight polyhedra, (c) two pyramids (Cd5O5, Cd6O5) and a deformed octa­hedron (Cd8O6) arranged to share corners building the second layer, (d) first and second layer connected, (e) a zigzag chain composed of the two pyramids Cd1O5 and Cd3O5 and the Cd7O6 prism fills the large tunnels of the framework, (f) the sequence of the three pyramids Cd1O5, Cd5O5, Cd6O5 and the square-based prism Cd7O6.

ISSN: 2056-9890
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