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Figure 1 Crystal structure of the title compound with labeling and displacement ellipsoids drawn at the 50% probability level. [symmetry codes: (i) −x + 1,y,-z + ; (ii) x,y − 1,z; (iii) −x + 1,y + 1,-z + ; (iv) −x + ,-y + ,-z + 2.]. The H atoms are omitted for clarity. |
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