Figure 7.

A) TOCSY and B) ROESY spectra of H−FFgc−NH₂ at 46.9 mm concentration in H₂O/D₂O 90/10 v/v. Different spin systems are indicated in A) whereas a few sequential and intra‐residue ROE contacts are reported in B) where black and blue labels are used for residues belonging to different conformational families. As for the nomenclature, F1 and F2 stand for phenylalanine n.1 and n.2 using the one letter amino acid code and residue number; similarly, g3 and c4 stand for PNA‐guanine (=residue n.3) and PNA‐cytosine (=residue n.4); c4’, g3’ and c4”, g3” refer to other different rotamers.