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Figure 1 The molecular structure of the title molecule, with the atom-numbering scheme. Displacement ellipsoids are drawn at the 50% probability level [symmetry codes: (i) 2 − x, y − 0.5, 2.5 − z, (ii) 2 − x, 1 − y, 2 − z, (iii) 2 − x, y − 0.5, 2.5 − z]. |