Sung Kuk Kim, Nam Jung Heo, Ju Hyun Oh, Jonathan L. Sessler
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引用次数: 0
Abstract
The anion binding features of pyrrole- and benzene-strapped calix[4]pyrroles 1 and 2, in particular, for F– and HCO3– have been examined by means of NMR spectroscopy in DMSO-d6, CDCl3, and CD3CN, respectively. Receptors 1 and 2 were found to bind F– and HCO3– tightly via slow binding/release equilibria in these solvents. A combination of 1H and 19F NMR spectroscopic analyses with mass spectrometry revealed that contacting calix[4]pyrroles 1 and 2 with F– and HCO3– salts prompts deuterium exchange of the NH protons in the three nominally aprotic deuterated solvents considered in this study.
期刊介绍：
Organic Chemistry Frontiers is an esteemed journal that publishes high-quality research across the field of organic chemistry. It places a significant emphasis on studies that contribute substantially to the field by introducing new or significantly improved protocols and methodologies. The journal covers a wide array of topics which include, but are not limited to, organic synthesis, the development of synthetic methodologies, catalysis, natural products, functional organic materials, supramolecular and macromolecular chemistry, as well as physical and computational organic chemistry.
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