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Cover Picture: A Hydrogen‐Bond Flip‐Flop through a Bjerrum‐Type Defect (Angew. Chem. Int. Ed. 9/2013)
Author(s) -
Olschewski Martin,
Lindner Jörg,
Vöhringer Peter
Publication year - 2013
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Reports
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201300349
Subject(s) - flip flop , cover (algebra) , int , flip , chemistry , materials science , computer science , optoelectronics , engineering , programming language , mechanical engineering , biochemistry , cmos , apoptosis
Hydrogen bonds can dynamically reverse their direction by means of an ultrafast flip‐flop motion of the donor and acceptor moieties engaged in the noncovalent contact. In their Communication on page 2602 ff., P. Vöhringer and co‐workers describe an application of femtosecond two‐dimensional infrared exchange spectroscopy (2DIR‐EXSY) in which these elementary dynamics are observed in the time domain of a simple model system, a vicinal diol.