Abstract
Chirality is a ubiquitous phenomenon in nature, serving as a foundation for a variety of life activities on earth. Separation-free methods that rapidly and accurately distinguish chiral analytes in complex systems are highly demanded in fields ranging from drug quality control to the screening of privileged chiral catalysts. However, in situ enantidifferentiation methods possessing resolution and tunability that are comparable to those achieved by chiral high-performance liquid chromatography are rare. Herein, we report a Lewis pair-based system for enantioanalysis via recognition-enabled "chromatographic" 19F NMR spectroscopy. The construction of Lewis pairs renders the detecting system not only enhanced affinity to chiral analytes but also superior and tunable resolving capability. Using this strategy, as many as 16 chiral analytes are simultaneously resolved without need for separation, thus opening new avenues for the development of precise and real-time detection methods that are robust enough for dealing with complex real-world samples.
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