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Figure 1 The asymmetric unit of the title compound, together with symmetry-related atoms to complete the coordination units. Displacement ellipsoids are drawn at the 30% probability level. H atoms have been omitted for clarity. [Symmetry codes: (i) −x, −y + 1, −z + 1; (ii) −x, −y, 1 − z; (iii) −x, 1 − y, 2 − z; (iv) x, y, −1 + z; (v) x, 1 + y, z; (vi) x, −1 + y, z.] |