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Figure 1 . View of the three symmetry-independent molecules of (I) with atom labeling scheme. Dispalcement ellipsoids are shown at the 30% probability level. H atoms are represented as small spheres of arbitrary radii. (a) Molecule 1 [symmetry codes: (i) −y + 2, x − y + 1, z; (ii) −x + y + 1, −x + 2, z]; (b) molecule 2 [symmetry codes: (i) −x + y, −x + 1, z; (ii) −y + 1, x − y + 1, z]; (c) molecule 3 [symmetry codes: (i) −x + y, −x + 1, z; (ii) −y + 1, x − y + 1, z]. |