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Figure 1 The molecular structure of the title compound, with the atomic numbering scheme. Displacement ellipsoids are drawn at the 30% probability level. Symmetry codes: (A) x, 1/2-y, z; (B) 3/2-x, 1-y, 1/2+z; (C) 3/2-x, −1/2+y, 1/2+z; (D) x, 3/2-y, z. |