Protonation-Induced Transition between Two Distinct Helical Conformations of a Synthetic Oligomer via a Linear Intermediate†
This work was supported by the Région Aquitaine and the CNRS (predoctoral fellowships to V.M. and C.D.). We thank Dr. V. Berl and Prof. M. J. Krische for stimulating discussions at an early stage of this project, and Dr. E. J. Dufourc and C. Simon for assistance with NMR measurements.