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Lewis Acid–Base Adducts of 1‐Mesityl‐ and 1‐Chloro‐2,3,4,5‐tetraphenylborole
Author(s) -
Braunschweig Holger,
Chiu ChingWen,
Gamon Daniela,
Gruß Katrin,
Hörl Christian,
Kupfer Thomas,
Radacki Krzysztof,
Wahler Johannes
Publication year - 2013
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.201201383
Subject(s) - chemistry , lewis acids and bases , adduct , antiaromaticity , base (topology) , pyridine , characterization (materials science) , nuclear magnetic resonance spectroscopy , medicinal chemistry , stereochemistry , crystallography , organic chemistry , molecule , catalysis , aromaticity , nanotechnology , mathematical analysis , mathematics , materials science
Electron‐deficient borole compounds exhibit a pronounced Lewis acidity that is enhanced due to their antiaromatic character so that even weak donors datively coordinate to form Lewis acid–base adducts. This contribution presents the synthesis and structural characterization of Lewis acid–base adducts formed by the reaction of 1‐mesityl‐2,3,4,5‐tetraphenylborole and 4‐picoline as well as 1‐chloro‐2,3,4,5‐tetraphenylborole with various donors. The new compounds are characterized by means of multinuclear NMR spectroscopy and single‐crystal X‐ray diffraction techniques and compared to related systems.