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. Author manuscript; available in PMC: 2009 Oct 16.
Published in final edited form as: J Phys Chem B. 2008 Sep 24;112(41):13101–13115. doi: 10.1021/jp8032116

Table 7.

Parametersa of the intramolecular hydrogen bonds in the X-ray structures solved in this work.

Peptide Donor (D) Acceptor (A) d (H⋯A) d (D⋯A) < (D-H⋯A) H-bonded conformation
Piv-Pro-Ac3c-Val-NHMe (2b) (Val)NH (Piv)CO 2.35 3.034(5) 129 C10
MeNH (Piv)CO 1.86 2.852(6) 150 C13
Piv-Pro-Ac5c-Val-NHMe (3b) (Val)NH (Piv)CO 2.13 3.201(3) 168 C10
Piv-Ac5c-Val-NHMe (6b) MeNH (Piv)CO 1.92 2.934(3) 163 C10
a

Distances (d) in Å; angles in degrees.