Rotational isomerism in acetic acid: the first experimental observation of the high-energy conformer.
The high-energy conformer of acetic acid (cis-AA) is produced in an Ar matrix by vibrational excitation of the OH stretching overtone of the ground conformational state (trans-AA). IR-absorption spectroscopy provides a clear identification of the reaction product. cis-AA converts back to trans-AA in a time scale of minutes at 8 K by tunneling.
Maçôas
Ermelinda M S
EM
Laboratory of Physical Chemistry, P.O. Box 55, FIN-00014 University of Helsinki, Finland.
Khriachtchev
Leonid
L
Pettersson
Mika
M
Fausto
Rui
R
Räsänen
Markku
M
D019342:Acetic Acid / Q000737:chemistry*; D007536:Isomerism; D007700:Kinetics; D008956:Models, Chemical; D008968:Molecular Conformation; D017550:Spectroscopy, Fourier Transform Infrared
D019342:Acetic Acid