Figure 1
The molecular structure of (a) (I) and (b) (II), showing the atom-labelling schemes. Displacement ellipsoids are drawn at the 50% probability level at ca 110 K. Both of the disordered positions for atom O2 are shown (O2A and O2B). H atoms bound to N and O atoms are involved in the hydrogen bonding and are shown; all other H atoms have been omitted for clarity. |