Impact of substituent effects on the design of β-sheet mimetics and β-double helices from (E)-vinylogous γ-amino acid oligomers

The impact of substituent effects at the γ-carbon on the structures of (E)-vinylogous γ-amino acid homooligomers is studied.

Quadruple hybridization of quinoline–triazole oligomers

A series of quinoline–triazole oligomers self-assembled into quadruple helical structures is presented.

Supramolecular Helical Systems: Helical Assemblies of Small Molecules, Foldamers, and Polymers with Chiral Amplification and Their Functions

In this review, we describe the recent advances in supramolecular helical assemblies formed from chiral and achiral small molecules, oligomers (foldamers), and helical and nonhelical polymers from the viewpoints of their formations with unique chiral phenomena, such as amplification of chirality during the dynamic helically assembled processes, properties, and specific functionalities, some of which have not been observed in or achieved by biological systems. In addition, a brief historical overview of the helical assemblies of small molecules and remarkable progress in the synthesis of single-stranded and multistranded helical foldamers and polymers, their properties, structures, and functions, mainly since 2009, will also be described.