Figure 1
A molecular drawing of (I), showing the atom-numbering scheme. Displacement ellipsoids are drawn at the 50% probability level. All H atoms have been omitted for clarity. [Symmetry codes: (i) −x + 1, y, −z + ; (ii) −x + , −y + , −z + 1; (iii) −x + , −y + , −z + 1; (iv) x, y + 1, z.] |