Premium
Cover Feature: A Cationic NHC‐Supported Borole (Chem. Eur. J. 51/2020)
Author(s) -
Heitkemper Tobias,
Sindlinger Christian P.
Publication year - 2020
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.202002763
Subject(s) - cationic polymerization , chemistry , moiety , cyclopentadienyl complex , cover (algebra) , lewis acids and bases , medicinal chemistry , polymer chemistry , stereochemistry , organic chemistry , catalysis , mechanical engineering , engineering
The first example of a cationic borole has been prepared. Boroles are isoelectronic to—and this example now even shares the same net charge as—the elusive cyclopentadienyl cation. Even though the charge is mainly localized in the imidazolium moiety, the formally anti‐aromatic borole π‐system is affected. The cationic borole is more Lewis‐acidic and reveals less negative reduction potentials than comparable borenium cations and even reversibly forms an isolable complex with carbon monoxide. More information can be found in the Communication by T. Heitkemper and C. P. Sindlinger on page 11684.