The Strongest Isolable Acid

The Strongest Isolable Acid

Measure for measure: Several measures indicate that carborane acids of the type H(CHB11R5X6) (see scheme, green R, red X, gray H, pink B) for R=H, Cl and X=Cl, Br, I are the strongest pure Brønsted acids. Based on NMR and IR spectroscopy, H(CHB11Cl11) can lay claim to be the strongest isolable acid...

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Veröffentlicht in:Angewandte Chemie International Edition 2004-10, Vol.43 (40), p.5352-5355
Hauptverfasser: Juhasz, Mark, Hoffmann, Stephan, Stoyanov, Evgenii, Kim, Kee-Chan, Reed, Christopher A.
Format: Artikel
Sprache:eng
Schlagworte:
acids
Acids - chemistry
basicity suppression
Binding Sites
Boranes - chemistry
Brønsted acids
carboranes
Dimethylamines - chemistry
Hexanones - chemistry
Hydrogen - chemistry
Hydrogen-Ion Concentration
IR spectroscopy
Magnetic Resonance Spectroscopy
Nitrogen - chemistry
Oxidation-Reduction
Photons
Quaternary Ammonium Compounds - chemistry
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Beschreibung
Zusammenfassung:Measure for measure: Several measures indicate that carborane acids of the type H(CHB11R5X6) (see scheme, green R, red X, gray H, pink B) for R=H, Cl and X=Cl, Br, I are the strongest pure Brønsted acids. Based on NMR and IR spectroscopy, H(CHB11Cl11) can lay claim to be the strongest isolable acid presently known.
ISSN:1433-7851
1521-3773
DOI:10.1002/anie.200460005