Synthesis of Various Block-like Molecules and Their Characteristic Network Structure in the Crystal

Abstract

We synthesized various block-like molecules based on stereochemistry of tertiary aromatic amide which prefers cis (folded) conformation and weak intramolecular interactions such as aromatic-aromatic interactions. Their crystal structures and dynamic behaviors in solution were revealed by X-ray crystallographic analysis and dynamic ¹H NMR measurement. The block-like molecules were triangular, rhombic, twisted, spherical or pinched circle in shape. Some of them aggregated into a channel-shaped network via weak intermolecular interactions.