Figure 1
The asymmetric units of the two title compounds, showing the atom-numbering schemes. Displacement ellipsoids are drawn at the 40% probability level in (a) structure (I) [symmetry codes: (i) −x + 1, −y + 1, −z; (ii) −x + 2, −y + 1, −z; (iii) −x + 2, −y, −z; (iv) x, y + 1, z; (v) x − 1, y + 1, z; (vi) −x + 2, y + , −z + ] and (b) structure (II) [symmetry codes: (i) −x + 2, y − , −z + ; (ii) x, −y + , z − ; (iii) x, −y + , z − ; (iv) x, y − 1, z; (v) −x + 1, −y + 1, −z + 1]. Dashed lines indicate interactions with neighbouring molecules. |