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research article
The Torsional Barriers of 2-Hydroxy- and 2-Fluorobiphenyl: Small but Measurable
By making use of a novel diastereotopicity probe, namely C(CF3)(2)OH, it has been possible to measure by very low temperature F-19 NMR spectroscopy the elusive aryl aryl rotation barriers of biphenyls bearing an OH or F group in one rill position. The experimental values (5.4 and 4.4 kcal mol(-1), respectively) are matched by those from ab initio calculations (5.3 and 4.3 kcal mol(-1), respectively).
Type
research article
Web of Science ID
WOS:000281312800031
Authors
Publication date
2010
Published in
Volume
16
Start page
9186
End page
9192
Peer reviewed
REVIEWED
EPFL units
Available on Infoscience
December 16, 2011
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