Understanding the conformational behaviour of Ac-Ala-NHMe in different media. A joint NMR and DFT study.
Abstract
The conformational behaviour of Ac-Ala-NHMe was studied for the compound in the gas-phase and in solution by theoretical calculations and experimental 1H NMR. The conformational preferences of this compound showed to be resultant from a complex interplay between the strengths of possible intramolecular hydrogen bonds, steric interactions, hyperconjugation, entropy effects and the overall dipole moments. The Ac-Ala-N(Me)2 derivative was used in order to simulate the effect of polar protic solvents in disrupting intramolecular hydrogen bonds involving the -NHMe group in Ac-Ala-NHMe.
Citation
Cormanich , R A , Buehl , M & Rittner , R 2015 , ' Understanding the conformational behaviour of Ac-Ala-NHMe in different media. A joint NMR and DFT study. ' , Organic & Biomolecular Chemistry , vol. 13 , no. 35 , pp. 9206-9213 . https://doi.org/10.1039/C5OB01296A
Publication
Organic & Biomolecular Chemistry
Status
Peer reviewed
ISSN
1477-0520Type
Journal article
Description
The authors thank EaStCHEM, CNPq and FAPESP for the studentship (to R.A.C. #2011/01170-1, FAPESP), as is CNPq for the fellowship (R.R.).Collections
Items in the St Andrews Research Repository are protected by copyright, with all rights reserved, unless otherwise indicated.