Figure 8
Two molecules of aspirin, molecule 1 and molecule 2, are related by an inversion centre. These two molecules are not enantiomers, since the mirror image of molecule 1 (i.e. molecule 2) can be superimposed on molecule 1 by rotating the fragment C21/C22/O21/H21/H22/H23 with respect to a twofold axis defined by the line C23–O2, indicated by a blue line. |