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New Developments in Superacid Chemistry: Characterization of HC + =O and FC + =O Cations
Author(s) -
Sorensen Ted S.
Publication year - 1998
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/(sici)1521-3773(19980316)37:5<603::aid-anie603>3.0.co;2-k
Subject(s) - superacid , characterization (materials science) , chemistry , carbonylation , cleavage (geology) , nuclear magnetic resonance spectroscopy , spectroscopy , inorganic chemistry , catalysis , photochemistry , organic chemistry , materials science , nanotechnology , carbon monoxide , physics , quantum mechanics , fracture (geology) , composite material
A high gas pressure and use of the superacid HF/SbF 5 (1/1) were required for direct spectroscopic characterization of the HC + =O cation, which was until recently discussed as the short‐lived intermediate of carbonylation reactions. The fluorocarbonyl cation FC + =O, which was equally difficult to characterize, was also directly observed with NMR spectroscopy as the product of protolytic cleavage of tert ‐butyl fluoroformate [Eq. (a)].