Figure 6
Two possible local configurations for the Pb2 site that can be derived from the split-site models of the trigonal phase of pure lead phosphate at 2.27 GPa (refinement S3P3X0), assuming that the PO4 tetrahedra remain undistorted. The configuration shown in (b) more closely resembles that of the monoclinic phase than that in (a). Pb—O bond lengths are given in Å. |