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Figure 2 The polymeric structure. Pb atoms are generated by the symmetry operators: (a) x, −1 + y, z, (b) x, 1 + y, z, (c) 1/2 − x, 1 − y, −1/2 + z, (d) 1/2 − x, 1 − y, 1/2 + z, (h) 1 − x, y, z, (l) −1/2 + x, 1 − y, 1/2 + z. |
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Figure 2 The polymeric structure. Pb atoms are generated by the symmetry operators: (a) x, −1 + y, z, (b) x, 1 + y, z, (c) 1/2 − x, 1 − y, −1/2 + z, (d) 1/2 − x, 1 − y, 1/2 + z, (h) 1 − x, y, z, (l) −1/2 + x, 1 − y, 1/2 + z. |