Figure 1
The molecular structure of (I), showing the atom-numbering scheme. Displacement ellipsoids are drawn at the 40% probability level and H atoms have been omitted for clarity. Independent atoms are shown with heavy bonds and filled ellipsoids, and symmetry-related atoms are shown with light bonds and empty ellipsoids. [Symmetry codes: (i) 1 + x, y, z; (ii) 2 − x, 1 − y, 1 − z; (iii) 1 − x, 1 − y, 1 − z.] The structure of (II) is analogous and is available with the deposited material
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