Figure 1
The molecular structures of (a) compound (I), (b) (II), (c) (III) and (d) (IV), showing the atom-labelling schemes. Displacement ellipsoids are drawn at the 30% probability level and H atoms are shown as small spheres of arbitrary radius. The refined occupancies of the F-atom sites in compound (II) are 0.774 (5) for F62 and 0.226 (5) for F66. |