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Figure 1 The asymmetric unit of (I), showing the atom-labelling scheme. Displacement ellipsoids are drawn at the 30% probability level and H atoms are shown as small spheres. [Symmetry codes: (i) –x+1, –y+1, –z+2; (ii) x, –y+3/2, z–1/2; (iii) –x+1, y–1/2, –z+3/2; (iv) –x+1, y + , –z+3/2; (v) –x+1, –y+2, –z+2. |
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