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. Author manuscript; available in PMC: 2014 Oct 27.
Published in final edited form as: J Am Chem Soc. 2013 Mar 11;135(11):4333–4363. doi: 10.1021/ja3109664

Table 6.

19F NMR chemical shifts. Chemical shifts are listed in order from upfield to downfield based on δ in the trans conformation. n.d. = not determined due to spectral overlap.

Peptide δtrans, ppm Multiplicity (J, Hz) δcis, ppm Multiplicity (J, Hz)
graphic file with name nihms455051t174.jpg −177.1 s −177.9 s
graphic file with name nihms455051t175.jpg −173.2 s −173.5 s
graphic file with name nihms455051t176.jpg −163.2 dd (24, 24) −163.6 dd (20, 20)
graphic file with name nihms455051t177.jpg −161.9 t (24) −162.1 t (20)
graphic file with name nihms455051t178.jpg −156.5 d (24) −156.1 d (20)
graphic file with name nihms455051t179.jpg −163.4 dd (24, 24) −163.6 dd (24, 24)
graphic file with name nihms455051t180.jpg −162.4 t (24) −162.9 t (24)
graphic file with name nihms455051t181.jpg −156.3 d (24) −156.3 n.d.
graphic file with name nihms455051t182.jpg −100.6 s −103.2, −103.9 d (252)
−94.8, −95.4 d (252)
graphic file with name nihms455051t183.jpg −100.8, −101.4 d (248) −104.7, −105.3 d (252)
−99.7, −100.3 d (248) −94.3, −94.9 d (252)
graphic file with name nihms455051t184.jpg −70.7 s −70.8 s
graphic file with name nihms455051t185.jpg −70.0 s −70.7 s