A Hydrogen-Bond Flip-Flop through a Bjerrum-Type Defect

Back and forth: Femtosecond two‐dimensional infrared exchange spectroscopy was used to study the dynamics of the reversal of an intramolecular hydrogen bond. The H‐bond reversal resembles a flip‐flop motion that is facilitated by two concerted disrotatory torsional isomerizations and that occurs on...

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Bibliographic Details
Published in:Angewandte Chemie International Edition 2013-02, Vol.52 (9), p.2602-2605
Main Authors: Olschewski, Martin, Lindner, Jörg, Vöhringer, Peter
Format: Article
Language:English
Subjects:
Bjerrum defects
Dynamic tests
Exchange
Femtosecond
Flip-flops
Hydrogen Bonding
Hydrogen bonds
Infrared
infrared spectroscopy
Isomerization
Kinetics
Models, Molecular
proton transfer
Protons
Spectrophotometry, Infrared - methods
Two dimensional
two-dimensional IR spectroscopy
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Summary:Back and forth: Femtosecond two‐dimensional infrared exchange spectroscopy was used to study the dynamics of the reversal of an intramolecular hydrogen bond. The H‐bond reversal resembles a flip‐flop motion that is facilitated by two concerted disrotatory torsional isomerizations and that occurs on a time scale of about 2 ps.
ISSN:1433-7851
1521-3773
DOI:10.1002/anie.201208625