Figure 1
Molecular conformation for (a) (1) (phase I), (b) (1) (phase II) and (c) (2), showing 30% probability level ellipsoids from an ORTEPII drawing (Johnson, 1976). H atoms for (1) (phase I) are omitted for clarity. C4* and C5* in (1) (phase I) are disordered atoms whose symmetry codes are: x, y, -z. |