Figure 2
The structure of (II), showing the atom-labelling scheme. Displacement ellipsoids are drawn at the 30% probability level. N and O atoms are shaded grey and dashed lines indicate hydrogen bonding. [Symmetry codes: (i) −x + 1, y, −z + ; (ii) −x + , y + , −z + ; (iii) x − , y + , z.] |