|
Figure 3 Details of the connections between the (PO3)∞ chains and the TbO8 polyhedra: a) view showing the two kind of bidentate attachments. b) view showing the bidentate attachments and the PO4 groups shared between two TbO8 square antiprisms belonging to two adjacent rows. c) view showing the shift (p/2) of one chain relative to the other. |