Titre : Recognizing and Manipulating Anions.
Cette conférence sera prononcée par le professeur Amar Flood du département de chimie de l'Indiana University. Elle est commanditée par le Centre de recherche sur les materiaux auto-assemblés (CRMAA) et sera donnée en anglais.
Résumé : Anions are present in many chemical and biological processes motivating studies on their recognition and manipulation. To these ends, we employ easy-to-make triazole receptors that form unexpectedly strong CH hydrogen bonds. Foldamers are a class of receptor we have put to use in the photodriven catch-and-release of Cl– ions in organic solvents. Towards more competitive aqueous media, the protein-like structures of foldamers enabled unprecedented extraction of Cl– by taking advantage of hydrophobic collapse and anion-induced organization. We have extended the use of anionic stimuli to graphite surfaces to drive phase transitions between 2D crystals of aryl-triazole adsrobates. Finally, new studies aimed at generalizing CH hydrogen bonding in receptors will also be presented.
