期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 56, 期 8, 页码 2079-2082出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201607344
关键词
bicollidinium salts; chiral electroanalysis; chiral ionic liquids; enantiodiscrimination; inherent chirality
资金
- Fondazione Cariplo, Premio Fondazione Cariplo per la Ricerca di Frontiera [2011-1851]
To achieve enantioselective electroanalysis either chiral electrodes or chiral media are needed. High enantiodiscrimination properties can be granted by the inherent chirality strategy of developing molecular materials in which the stereogenic element responsible for chirality coincides with the molecular portion responsible for their specific properties, an approach recently yielding outstanding performances as electrode surfaces. Inherently chiral ionic liquids (ICILs) have now been prepared starting from atropisomeric 3,3'-bicollidine, synthesized from inexpensive reagents, resolved into antipodes without need of chiral HPLC and converted into long-chain dialkyl salts with melting points below room temperature. Both the new ICILs and shorter family terms, solid at room temperature, employed as low-concentration additives in achiral ILs, afford impressive enantioselection for the enantiomers of different probes on achiral electrodes, regularly increasing with additive concentration.
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