Journal
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Volume 54, Issue 49, Pages 14970-14973Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201508653
Keywords
borenium cations; boron; Group 13 elements; ionic liquids; Lewis acids
Categories
Funding
- QUILL
- QUILL, Industrial Advisory Board
- QUB Research Fellowship Scheme
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The first examples of ionic liquids based on borenium cations, [BCl2L](+), are reported. These compounds form highly Lewis acidic liquids under solvent-free conditions. Their acidity was quantified by determining the Gutmann acceptor number (AN). Extremely high ANs were recorded (up to AN=182, delta(31P)=120 ppm), demonstrating that these borenium ionic liquids are the strongest Lewis superacids reported to date, with the acidity enhanced by the ionic liquid environment.
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