Figure 1
An ORTEPIII (Burnett & Johnson, 1996) view of (I), with the atom-numbering scheme. Displacement ellipsoids are shown at the 50% probability level. All H atoms have been omitted for clarity. [Symmetry codes: (i) 1 − x, −y, −z; (ii) 1 − x, 1 − y, −z.] |