Supramolecular chemistry; foldamer; quinoline; nanosized; helix; structure; dynamics; ion mobility mass spectrometry; diffusion ordered NMR spectroscopy; DOSY; fluorescence anisotropy; electron transfer
Abstract :
[en] Herein, synthesis, characterization and application (photoinduced electron transport) of nanosized quinoline-based foldamers have been explored. With double segment strategy, a variety of helical nanosized foldamers (up to 96 quinoline units) were successfully prepared based on 8-aminoquinoline-2-carboxylic acid monomer.
The dynamic properties in gas phase and solution were investigated. Ion mobility mass spectrometry afforded access to the conformation state of foldamers in gas phase; DOSY and fluorescence anisotropy assessed the diffusion (translational and rotational, respectively) of foldamers in solution. All of these techniques revealed that quinoline-based foldamers are rigid and that helical conformation is conserved.
Photoinduced electron transport through nanosized foldamer was also studied and the mechanism and the transport ratios were revealed.
