Figure 1
The E isomer of (I). Displacement ellipsoids are shown at the 20% probability level and the alkenyl H atom as a small sphere of arbitrary radius; other H atoms have been omitted. For clarity, the cyclohexyl groups are represented only by thin lines representing the bonds to their constituent C atoms, only some of which are labelled, because the strictly cyclic labelling of these groups allows the identity of the remainder to be worked out. |