Figure 3
The molecular structures of isomorphous compounds (III) and (IV), with displacement ellipsoids for non-H atoms at the 30% probability level. Notice the different configuration for chiral center C5 in (III) and (IV). Non-labeled atoms are generated by symmetry codes (1 − x, −y, z) and (1 − x, 2 − y, z) for (III) and (IV), respectively. |