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Figure 1 A fragment of the polymeric structure of the title compound with labelling showing the environment of the lead atom. Displacement ellipsoids of non-hydrogen atoms are drawn at the 50% probability level. [Symmetry codes: (i) −x + 1, −y + 1, −z; (ii) −x, −y + 1, −z; (iii) −x, −y, −z; (iv) x + 1, −y + 1, −z + 1]. |