Figure 1
The structure of (I), showing the atom-labelling scheme. Displacement ellipsoids are drawn at the 45% probability level and H atoms are shown as small spheres of arbitrary radii. Dashed lines indicate hydrogen bonds. [Symmetry codes: (i) −x, 1 − y, −z; (iii) 1 − x, −y, 1 − z; (iv) 1 + x, y − 1, 1 + z; (v) 1 − x, −1 − y, 1 − z.] |