Figure 1.

Molecular structure of (P)‐BPTI 7 according to single‐crystal X‐ray analysis of a racemic mixture. a) Top view (28.3° as dihedral angle of bay position) and b) side view. In addition, an enlarged excerpt of the bay area is shown to illustrate the chiral helical twist (angles of 13.4° and 11.2° show the rotation of the successive π‐planes to each other). The ellipsoids are set to 50 % probability (C: gray, O: red, N: blue, H: white). Disorder of imides as well as solvent molecules and hydrogen atoms are omitted for clarity. For the packing pattern of (P)‐ and (M)‐enantiomers, see the Supporting Information (Figure S9).