Length-Dependent Transition from Extended to Folded Shapes in Short Oligomers of an Azetidine-Based α-Amino Acid: The Critical Role of NH···N H-Bonds. - Liu, Dayi; Bardaud, Jean-Xavier; Imani, Zeynab; Robin, Sylvie; Gloaguen, Eric; Brenner, Valérie; Aitken, David J.; Mons, Michel (Molecules, 2023)