Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
α' (a), C5-III (b), C7-III (c), C7-IV (d) and C7-V (e) minimum energy conformations of Ac-Dbzg-NHMe obtained at the B3LYP/6-31+G(d,p) level. Geometric parameters of both intramolecular hydrogen bonds (dashed lines and roman numbers) and N-H⋯π interactions (arrows and italic numbers) are indicated.
