WebAn anion receptor derived from a tren-based amide cryptand with pyridine spacers has been synthesized and characterized. Two crystal structures are reported: the hydrochloride salt and the fluoride complex. The cryptand shows extremely high binding with fluoride ion in DMSO-d6. Both the crystal structure and solution 19F NMR data indicate an ... WebFirst, the cationic azaphosphatranes together with the metal ions provide an overall +12 charge, offering a strong electrostatic driving force for anion binding. Second, the …
Reversible Reduction of Oxygen to Peroxide Facilitated by ... - Science
WebJun 23, 2024 · One topical area of supramolecular chemistry is the binding of anionic species but despite the importance of anions in diverse cellular processes and for … WebPerchlorate anion is a highly toxic environmental contaminant, which is implicated in various health related problems. This paper reports a cryptand-based synthetic molecule (L) prepared from the reaction of tris (2-aminoethyl) amine and 2,5-thiophenedicarboxaldehyde under a high dilution condition, providing a well-defined cavity for a guest species. suzuki defence motors
Pyrrole‐Based Cryptand‐Like Cages: A Critical ... - ResearchGate
WebInitially anion binding of cage 1 was accessed by 1H NMR titrations in DMSO-d 6 /0.5% H 2 O and compared with a previously reported TREN-based tripodal anion receptor 2 (Table 1).15 Surprisingly, the hexa-urea cage 1, which is expected to be a strong anion receptor, shows a similar Cl– affinity to acyclic tris-urea 2. This is attributed to WebOct 1, 2010 · Cryptands and aza-cryptands have been well-established to work as versatile anionic receptors for negatively charged guest species, inter alia, in their protonated … WebAbout the same time the term cryptand appeared in reference to another bicyclic compound that was selective for alkaline-earth ions. Since the first report these simple bicycles, a vast arena of hosts has appeared, including acyclic, monocyclic, and other multicyclic … suzuki delfzijl